No one would have time to read or listen to an account of everything _____ going on in the world.

A．it is

B．as is

C．there is

D．what is

关于生长激素缺乏症，错误的是（）

A.特发性下丘脑、垂体功能障碍是生长激素缺乏的主要原因

B.任何病变侵及下丘脑或垂体前叶时都可引起生长迟缓

C.生长激素是由垂体前叶分泌的

D.骨龄超前

E.特发性生长激素缺乏症多见于男孩