【单选题】
下列函数中，在<img src="20190730/1564473949495175.png" title="1564473949495175.png" alt="图片46.png"/>内是减函数的为( )
①
<img src="20190730/1564474090983745.png" title="1564474090983745.png" alt="图片50.png"/>
②
<img src="20190730/1564474069714722.png" title="1564474069714722.png" alt="图片51.png"/>
③
<img src="20190730/1564473984807752.png" title="1564473984807752.png" alt="图片47.png"/>
④
<img src="20190730/1564474084192474.png" title="1564474084192474.png" alt="图片49.png"/>
【单选题】
<img src=https://huaweicloudobs.ahjxjy.cn/6EFB3C2013FC4E033200C1A9A9000E55.png title=题干.png alt=题干.png width=807 height=36 style=width: 807px; height: 36px;/>
①
<img src=https://huaweicloudobs.ahjxjy.cn/46918E1566E3B7754A6DFDF826D7F77B.png style= title=1.png/>
②
<img src=https://huaweicloudobs.ahjxjy.cn/2D4BFCB4099D3ECDA21908B30BB8B6DF.png title=3.png style=white-space: normal;/>
③
<img src=https://huaweicloudobs.ahjxjy.cn/985655EEA05455DD696FB0233B0ECD1F.png title=2.png style=white-space: normal;/>
④
<img src=https://huaweicloudobs.ahjxjy.cn/48BEE96B3527491AD2FAB49C3BC56340.png title=4.png style=white-space: normal;/>
【单选题】
<img src=https://huaweicloudobs.ahjxjy.cn/1F741213CCA2A4B3982BA3C0A0C335E6.png title=题干.png alt=题干.png width=850 height=86 style=width: 850px; height: 86px;/>
①
<img src=https://huaweicloudobs.ahjxjy.cn/7B008D7EF477B871119431402F44C8CE.png style=width: 372px; height: 51px; title=2.png width=372 height=51/>
②
<img src=https://huaweicloudobs.ahjxjy.cn/C5506FC74D312DE8C82B9433983A4BE9.png title=1.png style=white-space: normal; width: 432px; height: 53px; width=432 height=53/>
③
<img src=https://huaweicloudobs.ahjxjy.cn/EF2784BC0473802D8960F7FCDFED59F2.png title=3.png style=white-space: normal; width: 808px; height: 115px; width=808 height=115/>
④
<img src=https://huaweicloudobs.ahjxjy.cn/9D9F6887A48F617B7C020B33E58BCA46.png title=4.png style=white-space: normal; width: 786px; height: 115px; width=786 height=115/>
【单选题】
<img src=https://huaweicloudobs.ahjxjy.cn/0216A5A94F4CC2DFDE27641F22FB607B.png title=题干.png alt=题干.png width=853 height=97 style=width: 853px; height: 97px;/>
①
<img src=https://huaweicloudobs.ahjxjy.cn/4A318A4AA60B61385F5312C70AC5393E.png style= title=3.png/>
②
<img src=https://huaweicloudobs.ahjxjy.cn/00FE6A192619B47E27C3C75F0FED0371.png title=1.png style=white-space: normal;/>
③
<img src=https://huaweicloudobs.ahjxjy.cn/A0DA6A521EC6BEB1BB78630D5B60E741.png title=2.png style=white-space: normal;/>
④
<img src=https://huaweicloudobs.ahjxjy.cn/60E203DCF64D0381FD92B2F78162B1A1.png title=4.png style=white-space: normal;/>
【单选题】
<img src=https://huaweicloudobs.ahjxjy.cn/4B1B96F74AEAFA4845C003175FF7B97A.png title=题干.png alt=题干.png width=835 height=138 style=width: 835px; height: 138px;/>
①
<img src=https://huaweicloudobs.ahjxjy.cn/E71DE4E71D84BF8E0502B9D4B6CF783E.png style= title=1.png/>
②
<img src=https://huaweicloudobs.ahjxjy.cn/D63DCA0E181BA13E946D15F7D9A46FD0.png title=2.png style=white-space: normal;/>
③
<img src=https://huaweicloudobs.ahjxjy.cn/C4CCA2F7E25978F5F38B553D61300A40.png title=3.png style=white-space: normal;/>
④
<img src=https://huaweicloudobs.ahjxjy.cn/9ECE1659F829E365F113D090EBF59A41.png title=4.png style=white-space: normal;/>
【单选题】
<img src=https://huaweicloudobs.ahjxjy.cn/A8E4C3D646506F07AC65CBDB7BE1F878.png title=题干.png alt=题干.png width=677 height=55 style=width: 677px; height: 55px;/>
①
<img src=https://huaweicloudobs.ahjxjy.cn/22D9E2FBFBBE875D7C389BCBBB31ED46.png style=width: 117px; height: 39px; title=1.png width=117 height=39/>
②
<img src=https://huaweicloudobs.ahjxjy.cn/BE6AEE28E63DC2EBAEE39D2E2A78B75D.png title=3.png style=white-space: normal; width: 105px; height: 41px; width=105 height=41/>
③
<img src=https://huaweicloudobs.ahjxjy.cn/5A7BF729812A774A886A8A338C9599AA.png title=2.png style=white-space: normal; width: 171px; height: 77px; width=171 height=77/>
④
<img src=https://huaweicloudobs.ahjxjy.cn/A8B1E44C860B7C7705275736D51C356C.png title=4.png style=white-space: normal; width: 195px; height: 73px; width=195 height=73/>
【单选题】
<img src=https://huaweicloudobs.ahjxjy.cn/100E1F6F104E065491422A80D4CC8160.png title=题干.png alt=题干.png width=835 height=99 style=width: 835px; height: 99px;/>
①
<img src=https://huaweicloudobs.ahjxjy.cn/A37BC314181FD92122DC388FC45BC343.png style= title=3.png/>
②
<img src=https://huaweicloudobs.ahjxjy.cn/E3A84CF6F5E7A4ECDEDF0D332868FA81.png title=1.png style=white-space: normal;/>
③
<img src=https://huaweicloudobs.ahjxjy.cn/D5E6FBC9D67F1810F3745A7D50A2E3FB.png title=2.png style=white-space: normal;/>
④
<img src=https://huaweicloudobs.ahjxjy.cn/CC2D38E790013EFF1C56C92C6D8B3858.png title=4.png style=white-space: normal;/>
【单选题】
函数<img src="20190730/1564474143666452.png" title="1564474143666452.png" alt="图片52.png"/>是 ()
①
非奇非偶函数
②
奇函数
③
偶函数
④
既是奇函数又是偶函数
【单选题】
<img src=https://huaweicloudobs.ahjxjy.cn/AA9B4F77558884DC85F3AD29893DFC9D.png title=题干.png alt=题干.png width=734 height=300 style=width: 734px; height: 300px;/>
①
<img src=https://huaweicloudobs.ahjxjy.cn/58E6E88EEE9318081582C15DF458CA17.png style= title=1.png/>
②
<img src=https://huaweicloudobs.ahjxjy.cn/6954EFD6DAEC260CE281055B766B1E9C.png title=2.png style=font-size: 18.018px; white-space: normal;/>
③
<img src=https://huaweicloudobs.ahjxjy.cn/933E5E010F00EE6837F230B780C24612.png title=3.png style=white-space: normal;/>
④
<img src=https://huaweicloudobs.ahjxjy.cn/E9B60719F375113C33D69E0BC924EB42.png title=4.png style=white-space: normal;/>
【单选题】
设<img src=https://huaweicloudobs.ahjxjy.cn/C67CBDA727FEA56C7AB111CAB6F951AD.png title=QQ图片20160224215718.png alt=QQ图片20160224215718.png width=212 height=25 border=0 vspace=0 style=width: 212px; height: 25px;/>，则（ ）
①
<img src=https://huaweicloudobs.ahjxjy.cn/DF3DA077C2189146990B3800DA1E18ED.png title=QQ图片20160224214023.png alt=QQ图片20160224214023.png/>为极值点
②
<img src=https://huaweicloudobs.ahjxjy.cn/DF3DA077C2189146990B3800DA1E18ED.png title=QQ图片20160224214023.png alt=QQ图片20160224214023.png/>为驻点
③
<img src=https://huaweicloudobs.ahjxjy.cn/DF3DA077C2189146990B3800DA1E18ED.png title=QQ图片20160224214023.png alt=QQ图片20160224214023.png/>为连续点
④
<img src=https://huaweicloudobs.ahjxjy.cn/EA6FB79FF8DF7A9F3A2D0CEB093C717F.png title=QQ图片20160224214006.png alt=QQ图片20160224214006.png/>在<img src=https://huaweicloudobs.ahjxjy.cn/DF3DA077C2189146990B3800DA1E18ED.png title=QQ图片20160224214023.png alt=QQ图片20160224214023.png/>有定义
