选择题:— We’re having a party tonight. Would you like to

题目内容:

— We’re having a party tonight. Would you like to join us?— ___________.
(A) I’m sorry
(B) Of course not
(C) No, I can.t
(D) I’d love to, but I have an appointment
参考答案:

已知点A(4,1),B(2,3),则线段AB的垂直平分线方程为【】(A)z-Y+1=0(B)x+y-

已知点A(4,1),B(2,3),则线段AB的垂直平分线方程为【】(A)z-Y+1=0(B)x+y-5=0(C)x-Y-1=0(D)x-2y+1

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函数y=√x(x-1)的定义域为【  】 (A){x|x≥0}(B)(C)(D){x|x≤0或x≥1

函数y=√x(x-1)的定义域为【  】 (A){x|x≥0}(B)(C)(D){x|x≤0或x≥1}分值:4

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