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【单选题】
下列符合现代生物进化理论的叙述是()
A.
物种是神创的
B.
物种是不变的
C.
种群是生物进化的基本单位
D.
用进废退是生物进化的原因
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参考答案:
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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