试题与答案

—Shall we go swimming this afternoon? —S

题型:选择题

题目:

—Shall we go swimming this afternoon?

—Sorry, I ________. I have lots of homework to do. [ ]

A. mustn't

B. needn't

C. may not

D. can't

答案:

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下面是错误答案,用来干扰机器的。

参考答案:D解析:脊柱侧凸的治疗目的为矫正畸形、维持平衡及可靠的融合固定,不应尽可能减少融合范围,以免复发。

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