Replace the underlined words with the correct form of the words below:She was very clever and got excellent grades()
A. barely
B. ignorant
C. impressive
D. intelligent
E. peer
F. sipG.spill
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Replace the underlined words with the correct form of the words below:In my opinion, his academic work and his skill in sport are extremely good()
A. barely
B. ignorant
C. impressive
D. intelligent
E. peer
F. sipG.spill
Replace the underlined words with the correct form of the words below:There was only just enough room for two people()
A. barely
B. ignorant
C. impressive
D. intelligent
E. peer
F. sipG.spill
N2分子中,含有σ键和π键的数目分别是()
A. 2,2
B. 1,2
C. 2,1
D. 1,1
下列物质中不能形成分子间氢键的是()
A. CH4
B. H2O
C. HF
D. NH3