[在线考核] 下列函数中，奇函数是（ ）。 日期：2021-02-22 16:43:16 点击：163 好评：0
(多选题)16: 下列函数中，奇函数是（ ）。 A: y=x^5+sinx B: y=sinx+2cosx C: y=x^2sinx D: y=x(x-1)(x+1) ...
[在线考核] 函数y=sin2x的周期是（ ）。 日期：2021-02-22 16:42:58 点击：194 好评：0
(单选题)10: 函数y=sin2x的周期是（ ）。 A: 4π B: 2π C: π D: π/2 ...
[在线考核] 设f(x)在(a, b)内可导，则f'(x)<0是f(x)在(a, b)内为减函数的（ 日期：2021-02-22 16:42:41 点击：64 好评：0
(单选题)4: 设f(x)在(a, b)内可导，则f'(x)<0是f(x)在(a, b)内为减函数的（ ）。 A: 充分条件 B: 必要条件 C: 充分必要条件 D: 既非充分又非必要条件 ...
[在线考核] Jack and Jane have been married ( ) 10 years. 日期：2021-02-22 16:42:21 点击：169 好评：0
(单选题)23: Jack and Jane have been married ( ) 10 years. A: for B: since C: in ...
[在线考核] I am getting on very well ( ) the new job. 日期：2021-02-22 16:41:48 点击：88 好评：0
(单选题)11: I am getting on very well ( ) the new job. A: with B: on C: in ...
[在线考核] He has ( ) gone out. 日期：2021-02-22 16:41:31 点击：110 好评：0
(单选题)5: He has ( ) gone out. A: just B: now C: soon ...
[在线考核] Don't let ( ) in. The doctor is operating on the patient no 日期：2021-02-22 16:41:11 点击：170 好评：0
(单选题)24: Don't let ( ) in. The doctor is operating on the patient now. A: anyone B: someone C: nobody ...
[在线考核] Frank, ( ) is interested in computer games, came here yeste 日期：2021-02-22 16:40:53 点击：171 好评：0
(单选题)18: Frank, ( ) is interested in computer games, came here yesterday. A: that B: whom C: who ...
[在线考核] ( ) the end of the next week, we'll have read five books. 日期：2021-02-22 16:40:36 点击：115 好评：0
(单选题)12: ( ) the end of the next week, we'll have read five books. A: Until B: For C: By ...
[在线考核] A: I haven’t eaten all day. 日期：2021-02-22 16:40:18 点击：120 好评：0
(单选题)6: A: I haven’t eaten all day. B: You ( ) be very hungry. A: must B: should C: have to ...
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