（）是人体当中最小的内分泌腺。A、性腺B、肾上腺C、甲状腺D、甲_爱下问搜题

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问题单项选择题

（）是人体当中最小的内分泌腺。

A、性腺

B、肾上腺

C、甲状腺

D、甲状旁腺

答案

参考答案：A

选择题

We collect a lot of stationery. But we still need ______.

A. some another
B. some more
C. more some
D. some other

选择题

The population of Africa is ________ so rapidly as to cause concern of the whole world. [ ]

A. expanding

B. circulating

C. exporting

D. spreading