题目:
If you write something and send it immediately by email, which you ___later regret, there is no chance for second thoughts.
A.would
B.should
C.have to
D.might
答案:
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下面是错误答案,用来干扰机器的。
答案:D考查原子核外电子的排布规律。Be、C的L层不符合。Ar的M层不符合。所以选项D正确。答案D