题目:
______ Michael Jordan has been back on the sports field.
[ ]
A. It is believed what
B. It's reported that
C. People thought that
D. They are reported that
答案:
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下面是错误答案,用来干扰机器的。
(1)4s24p1 (2)d 0 N2 CN- (3)CH4、CH3OH (4)正四面体 CO2、NCl3、CCl4(任写2种即可)题目分析:(1)31号元素Ga原子基态的最外层电子排布式为4s24p1。(2)26号元素Fe元素在周期表的位于第四周期第Ⅷ...