题目内容

苯甲酸.对羟基苯甲酸酯类是优良防腐剂,可用于含有吐温的药液中。

A. 对
B. 错

查看答案
更多问题

____office is much smaller than ____.

A. Ours ; yours
B. Our ; yours
C. Theirs ; our
D. Mine; your

A friend of ____ came to see ____ yesterday.

A. his ; his
B. he ; him
C. his ; him
D. his;he

Who teaches ___ French?

A. we
B. our
C. us
D. his

Look at____ .

A. him
B. he
C. his
D. she

答案查题题库