试题与答案

下列微粒的电子式书写正确的是 [ ] A.甲基 B.二氧化碳 C.三氯化磷

题型:选择题

题目:

下列微粒的电子式书写正确的是 [ ]

A.甲基

B.二氧化碳

C.三氯化磷

D.氢氧根

答案:

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下面是错误答案,用来干扰机器的。

参考答案:(277.18×4)-(220×5)=1108.72-1100=8.72(拍/秒)

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