按离子极化概念,稀有气体型的离子的极化力是最弱的。
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______ broke her leg while skiing.
A. She
B. Her
C. Hers
Both his parents and teacher ____ proud of _____.
A. are; he
B. are; him
C. is; him
D. is; his
The population in Shanghai is larger than _____ in Guangzhou.
A. the population
B. that
C. those
D. it
Miss Wang is an old friend of ______.
A. my
B. me
C. mine
D. I