题目内容
(请给出正确答案)
[主观题]
—Hi, is Ann there, please?— ________
—Hi, is Ann there, please?— ________
A、Hold on. I’ll get her
B、No, she isn’t here
C、Yes, she lives here
D、Yes, what do you want
答案
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A、Hold on. I’ll get her
B、No, she isn’t here
C、Yes, she lives here
D、Yes, what do you want
第1题
be sent abroad very soon.
A) there being a chance B) there to be a chance
C) there be a chance D) being a chance
第2题
第3题
A.junk ?
B.junk :error !
C.junk :parameter not set
D.Hi there
第4题
第6题
设A是一n级下三角形矩阵,证明:
1)如果aii≠ajj当i≠j,i,j=1,2,...,n,那么A相似于一对角矩阵;
2)如果a11=a22=...=ann,而至少有一,那么A不与对角矩阵相似。
第8题
A.Hm,not too bad
B.Don't mention it
C.Thanks.
第10题
A.239.2kJ
B.438.4kJ
C.119.6kJ
D.358.8kJ