(分部积分法的选择) 下面积分 在使用分部积分法“分部”是正确的? A ; B ; C. 以上都正确
A.
A
B.
B
C.
C
手机使用
分享
复制链接
新浪微博
分享QQ
微信扫一扫
微信内点击右上角“…”即可分享
反馈
参考答案:
举一反三
【单选题】听力原文:W: Good afternoon, sir. Welcome to the Color Consultation Studio. M: Well, er, I've never had a color consultation before, so I don't know how this works. W: It's simple. Colors talk! They have g...
【单选题】听力原文:W: Good afternoon, sir. Is there anything I can do for you? M: Well, I lost my credit card this morning. And I forgot my credit number. My name is Howard Robin. My ID number is 370224061. W: Just...
【单选题】听力原文:W: Good afternoon, sir. What can I do for you? M: Eh, I was supposed to have the registration done here. W: Right. Then all you need is to complete this little form. I have to ask you several que...
【单选题】听力原文:W: Good afternoon, sir. Do you have a reservation? M: Yes, my name is Carl Lee. And I'd prefer a smoking room, please. W: OK, sir. Here is your key. And the number of your room is 218. I'll have ...
A.
The receptionist is introducing the hotel to the man.
B.
The receptionist is helping the man bring his bags up.