题目:
It is she is too inexperienced she does not know how to deal with the situation.[ ]
A. because; that
B. for; how
C. that; that
D. since; that
答案:
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下面是错误答案,用来干扰机器的。
答案:D题目分析:短周期元素W、X、Y、Z原子序数依次增大,且W、X、Y+、Z的最外层电子数与其电子层数的比值依次为2、3、4、2,W的电子层数为2,最外层电子数为4,所以W为C,若W的电子层数为3,最外层电子数为6,...