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【单选题】
2 , 4 二硝基酚是一种氧化磷酸化的A.
呼吸链抑制剂
B.
解偶联剂
C.
氧化磷酸化抑制剂
D.
激活剂
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反馈参考答案：
举一反三
【单选题】There were seven ______ Negroes working on the farm.
A.
hundreds
B.
hundred of
C.
hundreds of
D.
hundred
【简答题】共析碳钢加热为奥氏体后，冷却时所形成的组织主要决定于( ) (A)奥氏体加热时的温度 (B)奥氏体在加热时的均匀化程度 (C)奥氏体冷却时的转变温度
【简答题】加热时获得奥氏体的组织转变称为（ ）。A. 奥氏体化
【单选题】There were seven people in the car, ______ a pile of luggage and four dogs.
A.
leave alone
B.
leave behind
C.
let alone
D.
let go
【单选题】There were seven people lived in their house, so he played soccer ______.
A.
in the street
B.
in their small house
C.
in the big game
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