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北京市朝陽(yáng)區(qū)2022~2023學(xué)年度第一學(xué)期期末質(zhì)量檢測(cè)高一數(shù)學(xué)2023.1(考試時(shí)間120分鐘滿分150分)本試卷分為選擇題(共50分)和非選擇題(共100分)兩部分考生務(wù)必將答案答在答題卡上,在試卷上作答無(wú)效.考試結(jié)束后,將本試卷和答題卡一并交回.第一部分(選擇題共50分)一、選擇題共10小題,每小題5分,共50分.在每小題列出的四個(gè)選項(xiàng)中,選出符合題目要求的一項(xiàng).1.若SKIPIF1<0,則下列各式一定成立的是()A.SKIPIF1<0 B.SKIPIF1<0 C.SKIPIF1<0 D.SKIPIF1<0【答案】C【解析】【分析】結(jié)合特殊值以及冪函數(shù)的性質(zhì)確定正確答案.【詳解】AD選項(xiàng),SKIPIF1<0,則SKIPIF1<0,但SKIPIF1<0,所以AD選項(xiàng)錯(cuò)誤.B選項(xiàng),若SKIPIF1<0,則SKIPIF1<0,所以B選項(xiàng)錯(cuò)誤.C選項(xiàng),若SKIPIF1<0,由于SKIPIF1<0在SKIPIF1<0上遞增,所以SKIPIF1<0,所以C選項(xiàng)正確.故選:C2.若角SKIPIF1<0滿足SKIPIF1<0,則角SKIPIF1<0是()A第一象限角 B.第二象限角 C.第三象限角 D.第四象限角【答案】B【解析】【分析】根據(jù)三角函數(shù)四個(gè)象限符號(hào)確定.【詳解】SKIPIF1<0為第二,三象限角或者SKIPIF1<0軸負(fù)半軸上的角;又SKIPIF1<0為第二,四象限角所以SKIPIF1<0為第二象限角.故選:B3.下列函數(shù)中,在其定義域上單調(diào)遞增且值域?yàn)镾KIPIF1<0的是()A.SKIPIF1<0 B.SKIPIF1<0 C.SKIPIF1<0 D.SKIPIF1<0【答案】B【解析】【分析】分別求出每個(gè)選項(xiàng)的單調(diào)性和值域即可得出答案.【詳解】對(duì)于A,SKIPIF1<0在定義域上單調(diào)遞增且值域?yàn)镾KIPIF1<0,故A不正確;對(duì)于B,SKIPIF1<0在定義域上單調(diào)遞增值域?yàn)镾KIPIF1<0,故B正確;對(duì)于C,由雙勾函數(shù)的圖象知,SKIPIF1<0在SKIPIF1<0上單調(diào)遞增,在SKIPIF1<0上單調(diào)遞減,故C不正確;對(duì)于D,SKIPIF1<0的值域?yàn)镾KIPIF1<0,故D不正確.故選:B.4.設(shè)集合SKIPIF1<0,集合SKIPIF1<0,則A與B的關(guān)系為()ASKIPIF1<0 B.SKIPIF1<0SKIPIF1<0 C.SKIPIF1<0SKIPIF1<0 D.SKIPIF1<0【答案】A【解析】【分析】根據(jù)終邊相同的角的知識(shí)確定正確答案.【詳解】由于集合SKIPIF1<0,所以集合SKIPIF1<0表示終邊落在SKIPIF1<0軸上的角的集合;由于集合SKIPIF1<0,所以集合SKIPIF1<0表示終邊落在SKIPIF1<0軸上的角的集合;所以SKIPIF1<0.故選:A5.聲強(qiáng)級(jí)SKIPIF1<0(單位:SKIPIF1<0)出公式SKIPIF1<0給出,其中I為聲強(qiáng)(單位:SKIPIF1<0).若平時(shí)常人交談時(shí)的聲強(qiáng)約為SKIPIF1<0,則聲強(qiáng)級(jí)為()A.SKIPIF1<0 B.SKIPIF1<0 C.SKIPIF1<0 D.SKIPIF1<0【答案】C【解析】【分析】根據(jù)對(duì)數(shù)運(yùn)算求得正確答案.【詳解】依題意SKIPIF1<0.故選:C6.已知SKIPIF1<0,SKIPIF1<0,則“SKIPIF1<0”是“SKIPIF1<0”的()A.充分不必要條件 B.必要不充分條件C.充分必要條件 D.既不充分也不必要條件【答案】A【解析】【分析】通過(guò)基本不等式可得充分性成立,舉出反例說(shuō)明必要性不成立.【詳解】當(dāng)SKIPIF1<0,SKIPIF1<0時(shí),SKIPIF1<0,則當(dāng)SKIPIF1<0時(shí),有SKIPIF1<0,解得SKIPIF1<0,充分性成立;當(dāng)SKIPIF1<0,SKIPIF1<0時(shí),滿足SKIPIF1<0,但此時(shí)SKIPIF1<0,必要性不成立,綜上所述,“SKIPIF1<0”是“SKIPIF1<0”的充分不必要條件.故選:A.7.已知函數(shù)SKIPIF1<0,有如下四個(gè)結(jié)論:①函數(shù)SKIPIF1<0在其定義域內(nèi)單調(diào)遞減;②函數(shù)SKIPIF1<0的值域?yàn)镾KIPIF1<0;③函數(shù)SKIPIF1<0的圖象是中心對(duì)稱(chēng)圖形;④方程SKIPIF1<0有且只有一個(gè)實(shí)根.其中所有正確結(jié)論的序號(hào)是()A.①② B.②③ C.①③ D.③④【答案】D【解析】【分析】根據(jù)函數(shù)的單調(diào)性、值域、對(duì)稱(chēng)性以及方程的根等知識(shí)確定正確答案.【詳解】SKIPIF1<0的定義域?yàn)镾KIPIF1<0,SKIPIF1<0,所以SKIPIF1<0在SKIPIF1<0上遞增,①錯(cuò)誤.由于SKIPIF1<0,SKIPIF1<0,所以SKIPIF1<0的值域?yàn)镾KIPIF1<0.由于SKIPIF1<0,所以SKIPIF1<0是奇函數(shù),圖象關(guān)于原點(diǎn)對(duì)稱(chēng),③正確.由SKIPIF1<0得SKIPIF1<0構(gòu)造函數(shù)SKIPIF1<0,SKIPIF1<0在SKIPIF1<0上單調(diào)遞增,SKIPIF1<0,所以SKIPIF1<0在SKIPIF1<0上存在唯一零點(diǎn),也即方程SKIPIF1<0有且只有一個(gè)實(shí)根,④正確.所以正確結(jié)論的序號(hào)是③④.故選:D8.已知角SKIPIF1<0為第一象限角,且SKIPIF1<0,則SKIPIF1<0的取值范圍是()A.SKIPIF1<0 B.SKIPIF1<0 C.SKIPIF1<0 D.SKIPIF1<0【答案】A【解析】【分析】先確定SKIPIF1<0的取值范圍,由此求得SKIPIF1<0的取值范圍.【詳解】由于角SKIPIF1<0為第一象限角,所以SKIPIF1<0,所以SKIPIF1<0,由于SKIPIF1<0,所以SKIPIF1<0,所以SKIPIF1<0.故選:A9.某廠以x千克/小時(shí)速度勻速生產(chǎn)某種產(chǎn)品(生產(chǎn)條件要求SKIPIF1<0),每小時(shí)可獲得利潤(rùn)SKIPIF1<0元,要使生產(chǎn)100千克該產(chǎn)品獲得的利潤(rùn)最大,該廠應(yīng)選取的生產(chǎn)速度是()A.2千克/小時(shí) B.3千克/小時(shí)C.4千克/小時(shí) D.6千克/小時(shí)【答案】C【解析】【分析】生產(chǎn)100千克該產(chǎn)品獲得的利潤(rùn)為SKIPIF1<0,令SKIPIF1<0,由換元法求二次函數(shù)最大值即可.【詳解】由題意得,生產(chǎn)100千克該產(chǎn)品獲得的利潤(rùn)為SKIPIF1<0,SKIPIF1<0,令SKIPIF1<0,SKIPIF1<0,則SKIPIF1<0,故當(dāng)SKIPIF1<0時(shí),SKIPIF1<0最大,此時(shí)SKIPIF1<0.故選:C10.定義在SKIPIF1<0上的偶函數(shù)SKIPIF1<0滿足SKIPIF1<0,且在SKIPIF1<0上單調(diào)遞增,SKIPIF1<0,則a,b,c的大小關(guān)系是()A.SKIPIF1<0 B.SKIPIF1<0C.SKIPIF1<0 D.SKIPIF1<0【答案】A【解析】【分析】由SKIPIF1<0得SKIPIF1<0,則SKIPIF1<0的周期為2,結(jié)合函數(shù)的奇偶性,即可化簡(jiǎn)a,b,c,最后根據(jù)單調(diào)性比較大小.【詳解】由SKIPIF1<0得SKIPIF1<0,∴SKIPIF1<0的周期為2,又SKIPIF1<0為偶函數(shù),則SKIPIF1<0,SKIPIF1<0,∵SKIPIF1<0,SKIPIF1<0在SKIPIF1<0上單調(diào)遞增,∴SKIPIF1<0.故選:A第二部分(非選擇題共100分)二、填空題共6小題,每小題5分,共30分.11.已知集合SKIPIF1<0,集合SKIPIF1<0,則SKIPIF1<0____________.【答案】SKIPIF1<0【解析】【分析】根據(jù)并集的定義運(yùn)算即可.【詳解】因?yàn)镾KIPIF1<0,SKIPIF1<0,所以SKIPIF1<0,故答案為:SKIPIF1<012.已知角SKIPIF1<0,若SKIPIF1<0,則SKIPIF1<0__________;SKIPIF1<0__________.【答案】①.SKIPIF1<0##SKIPIF1<0②.SKIPIF1<0【解析】【分析】由條件結(jié)合誘導(dǎo)公式求SKIPIF1<0,根據(jù)特殊角三角函數(shù)值求出SKIPIF1<0,SKIPIF1<0即可.【詳解】因?yàn)镾KIPIF1<0,所以SKIPIF1<0,故SKIPIF1<0,又SKIPIF1<0,所以SKIPIF1<0,所以SKIPIF1<0,故答案為:SKIPIF1<0,SKIPIF1<0.13.設(shè)SKIPIF1<0且SKIPIF1<0,SKIPIF1<0,則SKIPIF1<0的最小值為_(kāi)_________.【答案】2【解析】【分析】對(duì)SKIPIF1<0利用對(duì)數(shù)運(yùn)算公式,得到SKIPIF1<0,再由基本不等式以及條件中的SKIPIF1<0,得到答案.【詳解】因?yàn)镾KIPIF1<0且SKIPIF1<0,所以SKIPIF1<0且SKIPIF1<0而SKIPIF1<0,且SKIPIF1<0所以由基本不等式可得SKIPIF1<0,當(dāng)且僅當(dāng)SKIPIF1<0,即SKIPIF1<0時(shí),等號(hào)成立.【點(diǎn)睛】本題考查對(duì)數(shù)運(yùn)算公式,基本不等式求和的最小值,屬于簡(jiǎn)單題.14.設(shè)函數(shù)SKIPIF1<0的定義域?yàn)镮,如果SKIPIF1<0,都有SKIPIF1<0,且SKIPIF1<0,已知函數(shù)SKIPIF1<0的最大值為2,則SKIPIF1<0可以是___________.【答案】SKIPIF1<0(答案不唯一)【解析】【分析】根據(jù)函數(shù)的奇偶性和最值寫(xiě)出符合題意的SKIPIF1<0.【詳解】依題意可知SKIPIF1<0是偶函數(shù),且最大值為SKIPIF1<0,所以SKIPIF1<0符合題意.故答案為:SKIPIF1<0(答案不唯一)15.已知下列五個(gè)函數(shù):SKIPIF1<0,從中選出兩個(gè)函數(shù)分別記為SKIPIF1<0和SKIPIF1<0,若SKIPIF1<0的圖象如圖所示,則SKIPIF1<0______________.【答案】SKIPIF1<0【解析】【分析】觀察圖象確定函數(shù)SKIPIF1<0的定義域和奇偶性和特殊點(diǎn),由此確定SKIPIF1<0的解析式.【詳解】由已知SKIPIF1<0,SKIPIF1<0,觀察圖象可得SKIPIF1<0的定義域?yàn)镾KIPIF1<0,所以SKIPIF1<0或SKIPIF1<0中必有一個(gè)函數(shù)為SKIPIF1<0,且另一個(gè)函數(shù)不可能為SKIPIF1<0,又SKIPIF1<0的圖象不關(guān)于原點(diǎn)對(duì)稱(chēng),所以SKIPIF1<0,所以SKIPIF1<0或SKIPIF1<0,若SKIPIF1<0,則SKIPIF1<0與函數(shù)SKIPIF1<0圖象矛盾,所以SKIPIF1<0,故答案為:SKIPIF1<0.16.已知函數(shù)SKIPIF1<0,給出以下四個(gè)結(jié)論:①存在實(shí)數(shù)a,函數(shù)SKIPIF1<0無(wú)最小值;②對(duì)任意實(shí)數(shù)a,函數(shù)SKIPIF1<0都有零點(diǎn);③當(dāng)SKIPIF1<0時(shí),函數(shù)SKIPIF1<0在SKIPIF1<0上單調(diào)遞增;④對(duì)任意SKIPIF1<0,都存在實(shí)數(shù)m,使方程SKIPIF1<0有3個(gè)不同的實(shí)根.其中所有正確結(jié)論的序號(hào)是________________.【答案】①②④【解析】【分析】結(jié)合分段函數(shù)的性質(zhì)對(duì)四個(gè)結(jié)論進(jìn)行分析,從而確定正確答案.【詳解】①,當(dāng)SKIPIF1<0時(shí),SKIPIF1<0,SKIPIF1<0的圖象如下圖所示,由圖可知,SKIPIF1<0沒(méi)有最小值,①正確.②,由于SKIPIF1<0,當(dāng)SKIPIF1<0時(shí),SKIPIF1<0;當(dāng)SKIPIF1<0時(shí),SKIPIF1<0,所以對(duì)任意實(shí)數(shù)a,函數(shù)SKIPIF1<0都有零點(diǎn),②正確.③當(dāng)SKIPIF1<0時(shí),SKIPIF1<0,SKIPIF1<0,即函數(shù)SKIPIF1<0在SKIPIF1<0上不是單調(diào)遞增函數(shù),③錯(cuò)誤.④,當(dāng)SKIPIF1<0時(shí),SKIPIF1<0,當(dāng)SKIPIF1<0時(shí),SKIPIF1<0,畫(huà)出SKIPIF1<0的圖象如下圖所示,由圖可知存在實(shí)數(shù)m,使方程SKIPIF1<0有3個(gè)不同的實(shí)根,④正確.綜上所述,正確結(jié)論的序號(hào)是①②④.故答案為:①②④三、解答題共5小題,共70分.解答應(yīng)寫(xiě)出文字說(shuō)明,演算步驟或證明過(guò)程.17.已知角SKIPIF1<0的頂點(diǎn)在坐標(biāo)原點(diǎn),始邊與x軸的非負(fù)半軸重合,終邊經(jīng)過(guò)點(diǎn)SKIPIF1<0.(1)求SKIPIF1<0和SKIPIF1<0的值;(2)求SKIPIF1<0值.【答案】(1)SKIPIF1<0(2)SKIPIF1<0【解析】【分析】(1)根據(jù)三角函數(shù)的定義求出SKIPIF1<0,再根據(jù)二倍角的正弦公式即可求得SKIPIF1<0;(2)先根據(jù)二倍角的余弦公式求出SKIPIF1<0,再根據(jù)商數(shù)關(guān)系求出SKIPIF1<0,再根據(jù)兩角和的正切公式即可得解.【小問(wèn)1詳解】解:由題意得SKIPIF1<0,所以SKIPIF1<0;【小問(wèn)2詳解】解:SKIPIF1<0,所以SKIPIF1<0,所以SKIPIF1<0.18.已知函數(shù)SKIPIF1<0.(1)當(dāng)SKIPIF1<0時(shí),解不等式SKIPIF1<0;(2)若命題“SKIPIF1<0,不等式SKIPIF1<0恒成立”是假命題,求實(shí)數(shù)SKIPIF1<0的取值范圍.【答案】(1)SKIPIF1<0(2)SKIPIF1<0或SKIPIF1<0【解析】【分析】(1)根據(jù)一元二次不等式的解法求得不等式SKIPIF1<0的解集.(2)結(jié)合開(kāi)口方向以及判別式求得SKIPIF1<0的取值范圍.【小問(wèn)1詳解】當(dāng)SKIPIF1<0時(shí),SKIPIF1<0,SKIPIF1<0即SKIPIF1<0,SKIPIF1<0,解得SKIPIF1<0所以不等式SKIPIF1<0的解集為SKIPIF1<0.【小問(wèn)2詳解】當(dāng)SKIPIF1<0恒成立,當(dāng)SKIPIF1<0不為0時(shí),SKIPIF1<0且SKIPIF1<0,即SKIPIF1<0,當(dāng)SKIPIF1<0時(shí),SKIPIF1<0成立,所以SKIPIF1<0命題“SKIPIF1<0,不等式SKIPIF1<0恒成立”是假命題所以a的取值范圍為:SKIPIF1<0或SKIPIF1<0.19.已知函數(shù)SKIPIF1<0.從條件①、條件②這兩個(gè)條件中選擇一個(gè)作為已知.(1)求a的值;(2)求SKIPIF1<0的最小值,以及取得最小值時(shí)x的值.條件①:SKIPIF1<0的最大值為6;條件②:SKIPIF1<0的零點(diǎn)為SKIPIF1<0.注:如果選擇條件①和條件②分別解答,按第一個(gè)解答計(jì)分.【答案】(1)若選條件①,則SKIPIF1<0;若選條件②,則SKIPIF1<0(2)答案見(jiàn)解析.【解析】【分析】(1)化簡(jiǎn)SKIPIF1<0的解析式,根據(jù)條件①或②求得SKIPIF1<0的值.(2)利用三角函數(shù)最值的求法求得正確答案.【小問(wèn)1詳解】SKIPIF1<0SKIPIF1<0.若選條件①,則SKIPIF1<0.若選條件②,則SKIPIF1<0.【小問(wèn)2詳解】若選條件①,由(1)得SKIPIF1<0,則當(dāng)SKIPIF1<0時(shí),SKIPIF1<0,則當(dāng)SKIPIF1<0時(shí),SKIPIF1<0取得最小值為SKIPIF1<0.若選條件②,由(1)得SKIPIF1<0,則當(dāng)SKIPIF1<0時(shí),SKIPIF1<0,則當(dāng)SKIPIF1<0時(shí),SKIPIF1<0取得最小值為SKIPIF1<0.20.已知函數(shù)SKIPIF1<0.(1)當(dāng)SKIPIF1<0時(shí),解不等式SKIPIF1<0;(2)若函數(shù)SKIPIF1<0是偶函數(shù),求m的值;(3)當(dāng)SKIPIF1<0時(shí),若函數(shù)SKIPIF1<0的圖象與直線SKIPIF1<0有公共點(diǎn),求實(shí)數(shù)b的取值范圍.【答案】(1)SKIPIF1<0(2)SKIPIF1<0(3)SKIPIF1<0【解析】【分析】(1)SKIPIF1<0即SKIPIF1<0,結(jié)合對(duì)數(shù)、指數(shù)函數(shù)單調(diào)性求解即可;(2)SKIPIF1<0偶函數(shù),則SKIPIF1<0,結(jié)合對(duì)數(shù)運(yùn)算法則化簡(jiǎn)求值即可(3)由對(duì)數(shù)運(yùn)算得SKIPIF1<0在SKIPIF1<0上單調(diào)遞增,且值域?yàn)镾KIPIF1<0,即可由數(shù)形結(jié)合判斷b的取值范圍.【小問(wèn)1詳解】當(dāng)SKIPIF1<0時(shí),SKIPIF1<0即SKIPIF1<0,即SKIPIF1<0,解得SKIPIF1<0;【小問(wèn)2詳解】函數(shù)SKIPIF1<0是偶函數(shù),則SKIPIF1<0,即SKIPIF1<0,即SKIPIF1<0,即SKIPIF1<0,∵SKIPIF1<0,故SKIPIF1<0;【小問(wèn)3詳解】當(dāng)SKIPIF1<0時(shí),SKIPIF1<0,SKIPIF1<0.∵SKIPIF1<0為減函數(shù),故SKIPIF1<0在SKIPIF1<0上單調(diào)遞增,且值域?yàn)镾KIPIF1<0∵函數(shù)SKIPIF1<0的圖象與直線SKIPIF1<0有公共點(diǎn),故實(shí)數(shù)b的取值范圍為SKIPIF1<0.21.設(shè)全集SKIPIF1<0,集合A是U的真子集.設(shè)正整數(shù)SKIPIF1<0,若集合A滿足如下三個(gè)性質(zhì),則稱(chēng)A為U的SKIPIF1<0子集:①SKIPIF1<0;②SKIPIF1<0,若SKIPIF1<0,則SKIPIF1<0;③SKIPIF1<0,若SKIPIF1<0,則SKIPIF1<0.(1)當(dāng)SKIPIF1<0時(shí),判斷SKIPIF1<0是否為U的SKIPIF1<0子集,說(shuō)明理由;(2)當(dāng)SKIPIF1<0時(shí),若A為U的SKIPIF1<0子集,求證:SKIPIF1<0;(3)當(dāng)SKIPIF1<0時(shí),若A為U的SKIPIF1<0子集,求集合A.【答案】(1)SKIPIF1<0不是U的SKIPIF1<0子集;(2)證明見(jiàn)解析;(3)集合SKIPIF1<0.【解析】【分析】(1)取SKIPIF1<0,由SKIPIF1<0不滿足性質(zhì)②可得SKIPIF1<0不是U的SKIPIF1<0子集;(2)通過(guò)反證法,分別假設(shè)SKIPIF1<0,SKIPIF1<0的情況,由不滿足SKIPIF1<0子集的性質(zhì),可證明出SKIPIF1<0;(3)由(2)得,SKIPIF1<0,SKIPIF1<0,SKIPIF1<0,再分別假設(shè)SKIPIF1<0,SKIPIF1<0,SKIPIF1<0,SKIPIF1<0四種情況,由不滿足SKIPIF1<0子集的性質(zhì),可得出SKIPIF1<0,再根據(jù)性質(zhì)②和性質(zhì)③,依次湊出8~23每個(gè)數(shù)值是否滿足條件即可.【小問(wèn)1詳解】當(dāng)SKIPIF1<0時(shí),SKIPIF1<0,SKIPIF1<0,SKIPIF1<0,取SKIPIF1<0,則SKIPIF1<0,但SKIPIF1<0,不滿足性質(zhì)②,所以SKIPIF1<0不是U的SKIPIF1<0子集.【小問(wèn)2詳解】當(dāng)SKIPIF1<0時(shí),A為U的SKIPIF1<0子集,則SKIPIF1<0;假設(shè)SKIPIF1<0,設(shè)SKIPIF1<0,即SKIPIF1<0取SKIPIF1<0,則SKIPIF1<0,但SKIPIF1<0,不滿足性質(zhì)②,所以SKIPIF1<0,SKIPIF1<0;假設(shè)SKIPIF1<0,取SKIPIF1<0,SKIPIF1<0,且SKIPIF1<0,則SKIPIF1<0,再取SKIPIF1<0,SKIPIF1<0,則SKIPIF1<0,再取SKIPIF1<0,SKIPIF1<0,且SKIPIF1<0,但與性質(zhì)①SKIPIF1<0矛盾,所以SKIPIF1<0.【小問(wèn)3詳解】由(2)得,當(dāng)SKIPIF1<0時(shí),若A為U的SKIPIF1<0子集,SKIPIF1<0,SKIPIF1<0,SKIPIF1<0
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