You ______ her in her office last Friday; she
单选题 2019-05-03 13:51:49
0260 A.needn’t have seen
B.must have seen
C.can't have seen
D.might have seen
参考答案:…… 查看答案
感兴趣题目
The basic input device on a small computer is a ________.The fifth generation computers, with artificial intelligence,______ and perfected now.2.The term payment card refers toThe physical components of a computer are collectively called _________.1. is a secure protocol jointly designed by Mastercard and Visa with the backing of Microsoft, Netscape, IBM, GTE, SAIC, and other companies.A VPN is physically but virtually求极限若函数在某点处不可导,则函数在该点处一定不连续.若f 在[a,b]上连续,则f在[a,b]上可积.若f(x)在[a,b]上有界,则f(x)在[]a,b上可积.函数f(x)=3sinx-cosx 既不是奇函数,也不是偶函数.闭区间上的连续函数是一致连续的