According to the author of the passage, globalization will very likely be preferred to regionalism in the post-pandemic era.
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Globalization should put stress on the mutual benefits of most countries.
A. True.
B. False
Fair competition means inclusiveness, not domination by a single country.
A. True.
B. False.
下列化合物能够在水溶液中稳定存在的是( )
A. Mg3N2
B. Al2S3
C.BN
D. Na2O2
关于乙硼烷的结构,下列叙述中错误的是
A. 含有B-B键
B. 有两个三中心二电子键
C. 四个B-H键共平面
D. B原子采用杂化