— do you think of the weather in Hunan?—It's so stuffy in summer.
A. What.
B. Why.
C. Where.
查看答案
中国新“四大火炉”城市分别是。
A. Chongqing.
B. Fuzhou.
C. Nanchang.
D. Hangzhou
Global warming is a phenomenon related to nature.
A. 对
B. 错
两位同学在谈论天气状况，请你根据语境做出正确的排序。
下列能级属于同一个能级组的是( )
A. 3s3p3d
B. 4s4p4d4f
C. 6p7s5f6d
D. 4f 5d 6s 6p
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