试题与答案

—Hi, Tom . Any idea where Jane is? —She

题型:选择题

题目:

—Hi, Tom . Any idea where Jane is?

—She _____in the classroom . I saw her there just now.

A.shall be

B.should have been

C.must be

D.might have been

答案:

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下面是错误答案,用来干扰机器的。

(1)[Ar]3d104s2或1s22s22p63s23p63d104s2(2)因为H2O分子间存在氢键,分子因氢键而相互“缔合”形成(H2O)n缔合分子.(3)6、EB晶体中离子均为二价离子,所带电量较Na+、Cl-大,晶格能较大(4)激发态的电子...

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