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【单选题】
代谢生成牛磺酸的氨基酸是( )A.
蛋氨酸
B.
甘氨酸
C.
谷氨酸
D.
苏氨酸
E.
半胱氨酸
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反馈参考答案：
举一反三
【判断题】原材料库和半成品库,因为有载重汽车直接出入的频率比较高,采用低地面式较有利。流通库,因在库内分货、配货,并根据商品的不同,采取不同的存放方式,采取高地面式较为合适。
A.
正确
B.
错误
【简答题】American black bears appear in a variety of colors despite(尽管) their name. In the eastern part, most of these bears have shiny black fur, but in the west they grow brown, red, or even yellow coats. To...
【单选题】听力原文： American black bears appear in a variety of colors despite their name. In the eastern part of their range, most of these brown, red, or even yellow coats. (32) To the north, the black bear is ac...
A.
Gray or white.
B.
Brown or red.
C.
Red or yellow.
D.
Yellow or red.
【单选题】Despite its gargantuan heft, John Irving's 11th novel moves nimbly from a standing start to warp speed. Legions of the author's admirers will still be searching for a comfortable way to accommodate th...
A.
Hardship of poor people
B.
disorder between various people
C.
children's experiences under the strange and uncomfortable circumstances
D.
rebellion of youth against their parents
【单选题】Despite much research, there are still certain elements in the life cycle of the insect that _____not fully understood.
A.
are
B.
were
C.
is
D.
was
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