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【单选题】
关于氨基酸的活化的叙述,正确的是( )
A.
在胞液中进行
B.
活化反应需GTP供能
C.
需核糖体参与
D.
活化的部位为氨基
E.
氨基酸与tRNA以肽键相连
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参考答案:
举一反三
【单选题】脂类的基本组成单位是()。
A.
氨基酸
B.
脂肪酸
C.
单糖
D.
维生素
【单选题】原核细胞与真核细胞都具有的一种细胞器是
A.
细胞骨架
B.
线粒体
C.
高尔基复合体
D.
核糖体
【简答题】句型转换 1. Don't worry. I can repair it on my own. Don't worry. I can repair it 2. Mr. Wang got up early so that he might not miss the early bus. Mr. Wang got up early _____ _____ _____ _____ miss the ea...
【简答题】I don’t suppose you need to worry.英译汉
【单选题】_____worry. Let me help you. [     ]
A.
Not
B.
Don't
C.
Can't
D.
Don't be
【单选题】投射到尾核和壳核的黑质神经元的轴突是通过以下哪种神经递质发挥作用的
A.
去甲肾上腺素
B.
多巴胺
C.
5- 羟色胺
D.
乙酰胆碱
E.
组胺
【单选题】—Don't go on a voyage alone. —Don't worry. .
A.
I won ' t
B.
I don ' t
C.
I can ' t
D.
I haven ' t
【单选题】—Don't step on the grass next time, Mike. —________. [     ]
A.
Is that so?
B.
Don't worry.
C.
I don't know.
D.
Sorry, I won't.
【单选题】—My cousin bought me aft English learning machine, but I don't know ________. —Don't worry. Just follow the instruction. [     ]
A.
how to use it
B.
which one to choose
C.
when to use it
【简答题】Don‘t worry. Your child is well looking after here.
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