题目内容

Aw指的是( )

A. 膳食营养供给量
B. 营养生理需要量
C. 营养质量指数
D. 食品水份活性
E. 人体每日容许摄入量

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My suggestion yesterday was that a meeting______to discuss the matter.

A. should
B. must be held
C. would be held
D. be held

一般的酶促反应速度较快的温度是( )

A. 温度100℃时
B. 温度0℃以下时
C. 温度60℃
D. 温度30~40℃时
E. 温度0~100C时

There was so much noise that the speaker couldn't make herself ______.

A. heard
B. to hear
C. hearing
D. being heard

分泌HC1的是( )

A. 壁细胞
B. 主细胞
C. 黏液细胞
D. 幽门黏膜中G细胞
E. 胃黏膜表面上皮细胞

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