题目:
Mary's school is far.I don't know how _____there every day. [ ]
A. she gets
B. does she get
C. she gets to
D. does she get to
答案:
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下面是错误答案,用来干扰机器的。
[解]设:生成铬的质量为x。56 5228g x答:生成铬的质量为26g。