【单选题】
若<img src=https://huaweicloudobs.ahjxjy.cn/4B47E52D5FEB1472250586A8FB2A3DA4.png title=FL[~WV6J4A{Q)`DIIT~Q0J1.png alt=FL[~WV6J4A{Q)`DIIT~Q0J1.png/>
①
<img src=https://huaweicloudobs.ahjxjy.cn/AB51BF3C280F1EF7F63266806055E170.png title=$77`CLRDQ]{)V`_F$`U]OKW.png alt=$77`CLRDQ]{)V`_F$`U]OKW.png/>
②
<img src=https://huaweicloudobs.ahjxjy.cn/604EE8257D071D6CF842D85E54F20582.png title=6{I1H2[~1]Z4WB8MKO4WO`D.png alt=6{I1H2[~1]Z4WB8MKO4WO`D.png/>
③
<img src=https://huaweicloudobs.ahjxjy.cn/F055D57D00C02EC141E647FD2EC0A3F6.png title=D_}`PO58NH(ZOLO9F]LRU]Y.png alt=D_}`PO58NH(ZOLO9F]LRU]Y.png/>
④
<img src=https://huaweicloudobs.ahjxjy.cn/FDEA9C9D6F1F62975C663BD6C921D001.png title=X7OPV$2R~13@0NFSX0Z23@7.png alt=X7OPV$2R~13@0NFSX0Z23@7.png/>
【单选题】
设<img src=https://huaweicloudobs.ahjxjy.cn/352D428A9C021C5A25E71F9FA8B1E5FA.png title=2IRD@UG~DTF~L9$A4[{O@MU.png alt=2IRD@UG~DTF~L9$A4[{O@MU.png/>为连续的可导函数,则下列命题正确的是( )
①
<img src=https://huaweicloudobs.ahjxjy.cn/6180A6A20DC7F9B8FB9C882BAE0176CD.png title=(2BS(}_@O7EHZLGR257%DB6.png alt=(2BS(}_@O7EHZLGR257%DB6.png/>
②
<img src=https://huaweicloudobs.ahjxjy.cn/D59251589C432BB6A142DD2184BE04DE.png title=GH$]6Z}B52MFX~_H8$DT9RC.png alt=GH$]6Z}B52MFX~_H8$DT9RC.png/>
③
<img src=https://huaweicloudobs.ahjxjy.cn/C0D101EE0CEF4C4AF5C4C3B659EA1F5D.png title=IIIHHP`~R7~UBP$UE047V4C.png alt=IIIHHP`~R7~UBP$UE047V4C.png/>
④
<img src=https://huaweicloudobs.ahjxjy.cn/78D029F36B9061D42BE84CD0E19B0F03.png title=OC}(BSHVKIPP`ML4HK0M3AP.png alt=OC}(BSHVKIPP`ML4HK0M3AP.png/>
【单选题】
The problem is not ____ so easy as you think. Its far from being settled.
【判断题】
Such was the case, there were no grounds to justify your complaints.
【判断题】
Cancer is second only of heart disease as a cause of death.
【单选题】
Its bad ____ for a man to smoke in the public places where smoking is not allowed.
【判断题】
He often attends public lectures at the university of California chiefly to improve his English.
【判断题】
Do you have any clothes washed today? The maid asked.
【判断题】
I appreciated to have sent to the United States to study five years ago.
【判断题】
There existed a certain doubt among the students as to the necessity of the work.