题目内容

下列物质中熔点最高的是________。

A. (A) NaCl
B. (B) N2
C. (C) SiC
D. (D) NH3

查看答案
更多问题

按离子极化概念,稀有气体型的离子的极化力是最弱的。

A. 对
B. 错

______ 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

答案查题题库