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问题 单项选择题

植物蛋白质利用率一般低于动物蛋白质，主要原因是（）

A.植物蛋白质含氮量低

B.必需氨基酸的模式不合理

C.膳食纤维含量多

D.与脂肪含量有关

E.蛋白质分子结构不同

答案

参考答案：B

解析：主要原因是必需氨基酸的模式不合理。

阅读理解

This is the twin’s bedroom. The two beds looks the same（看起来像）. This bed is Wang Lei’s. It is near the window. That one is Wang Fang’s. It’s behind the door. The twins have one desk and two chairs. Their clock, books and pencils are on the desk.  Their schoolbags are on the chairs. Wang Lei’s shirt is on his bed. On Wang Lei’s bed there is her skirt. It’s yellow. The room isn’t big, but nice.

小题1:This is_______ bedroom.

A．your

B．my

C．our

D．Wang Lei and Wang Fang’s小题2:Wang Lei and Wang Fang are________.

A．friends

B．brother and sister

C．sisters

D．brothers小题3:The bed behind the door is __________.

A．Wang Lei’s

B．Wang Fang’s

C．theirs

D．different小题4: _______on her bed.

A．Wang Lei’s sweater

B．Wang Lei’s yellow shirt

C．Wang Fang’s skirt

D．The sweater小题5: The bedroom is __________.

A．not big but new

B．new

C．nice

D．big and nice
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单项选择题

以下片剂剂型的特点：可避免复方制剂中药物的配伍变化（）。

A．含片 

B．舌下片 

C．多层片 

D．控释片 

E．分散片
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