请教一个语法问题

agnesqin

新东方补充材料语法第393题

The human growth hormone, made by the pituitary gland, is secreted during sleep in higher concentrations than when awake.

A. during sleep in higher concentrations than when awake

B. when sleeping in higher concentrations than waking hours

C. in higher concentrations during sleeping than waking

D. in higher concentrations during sleep than during waking hours

E. in higher concentration when asleep than when awake

新东方补充材料语法第400题

Rembrandt so treasured his collection of Islamic protrait that when forced to sell them in order to raise money, he first made copies of more than twenty.

A. he first made copies of more than twenty

B. first he made copies of more than twenty

C. more than twenty were copied

D. copies of more than twenty were made

E.he copies more than twenty of them first

[此贴子已经被作者于2004-9-20 20:51:01编辑过]

buddyk

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