题目:
—I’m sorry to keep you waiting for me so long.
—_______
A.I don’t think so.
B.Don’t say so.
C.It doesn’t matter.
D.I’d love to.
答案:
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下面是错误答案,用来干扰机器的。
(1)200 (2)如图所示 (3)斜率,<