皮皮学，免费搜题
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【单选题】
蛋白质合成过程中每增加1个肽键至少要消耗多少个高能键A.
3
B.
4
C.
5
D.
2
E.
6
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皮皮学刷刷变学霸
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【简答题】嘌呤环的C 4 、C 5 来自 ;C 2 和C 8 来自 ;C 6 来自 ;N 3 和N 9 来自 。
【单选题】下列各句节奏划分有误的一项是
A.
南海之帝／为倏，北海之帝／为忽，中央之帝／为浑沌。
B.
鸡／虽有／鸣者，已无／变矣。
C.
夫贵为天／子，富有／四海，由此／德也。
D.
春花／秋月／何时了？往事／知多少。
【单选题】Tom would rather _________than _________.
A.
stay at home , go out
B.
to stay at home , to go out
C.
to stay at home , go out
D.
stay at home , to go out
【单选题】It’s raining heavily, we decided _____ at home and watch TV . [ ]
A.
stay
B.
staying
C.
to stay
D.
stayed
【单选题】_____ your turn when the traffic lights are red. [ ]
A.
It's
B.
Stay for
C.
Wait for
D.
Stay at
【单选题】You are preparing to slush a stay on your vessel by lowering yourself down the stay in a bosun’s chair.The proper way to do this is to ride down the stay on a riding shackle（）.
A.
with the pin of the shackle riding on the stay
B.
with the pin of the shackle through the chair's bridle eye
C.
with a hook attaching the chair to the riding shackle
D.
connected to a second shackle on the chair
相关题目：
【单选题】_____ your turn when the traffic lights are red. [ ]
A.
It's
B.
Stay for
C.
Wait for
D.
Stay at