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【单选题】
大气向海洋输送热量,大气降温,有利于形成平流冷却雾。所以有利于形成海雾的一个条件是:
A.
海表面水温高于海表面气温
B.
海表面水温低于海表面气温
C.
海表面水温等于海表面气温
D.
与海表面水温和海表面气温无关
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举一反三
【单选题】酶分子中使底物转变为产物的基团称为
A.
结合基团
B.
催化基团
C.
碱基基团
D.
酸性基团
E.
疏水基团
【单选题】酶分子中使底物转变为产物的基团称为(    )
A.
结合基团  
B.
催化基团  
C.
碱性基团  
D.
酸性基团  
E.
疏水基团
【单选题】He changed his name, ______ that nobody would find out what he had done before.
A.
having thought
B.
to think
C.
thinks
D.
thinking
【单选题】使底物转变为产物的基团称为
A.
结合基团
B.
催化基团
C.
碱性基团
D.
酸性基团
【简答题】将列管换热器做成多管程的目的是
【单选题】使底物转变为产物的基团称为
A.
结合基团
B.
催化基团
C.
碱性基团
D.
酸性基团
E.
必需基团
【简答题】Write down the word according to the explanation. 1. ____________ n. the quality of knowing and understanding a lot about a complicated subject 2. ____________ v. to change or modify 3. ____________ad...
【单选题】Although she is an _________ talented dancer, she still practices several hours every day.
A.
rationally
B.
additionally
C.
traditionally
D.
exceptionally
【单选题】What is not right about the man and woman?
A.
They are husband and wife.
B.
They are having their honeymoon.
C.
They have been married for a long time.
D.
They are staying in a hotel.
【单选题】Are you a dancer?
A.
Yes, he is.
B.
No, I am not a dancer. I am a musician.
C.
No, I am a dancer.
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