以等性杂化轨道形成的分子,其空间构型一定对称
A. 对
B. 错
It is a safety requirement to ___ an access bridge over a motorway.
A. instruct
B. destruct
C. construct
D. counsel
I was going to pursue ___ as if my life depended on it.
A. normalcy
B. normal
C. normative
D. unnormal
He confidently___ that he is offering the best value in the market.
A. claimed
B. talks
C. proclaims
D. declare