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【单选题】
学生a说,离合器踏板需要留一定的自由行程;学生b说,离合器路板不应该留有自由行程。他们说法正确的是( )。A.
只有学生a正确
B.
只有学生b正确
C.
学生a和b都正确
D.
学生a和b都错
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举一反三
【单选题】By saying 'No doubt, we are all racist' (in boldface in Paragraph 3) the author admits that ______.
A.
we are all warlike by nature
B.
we all discriminate against other peoples
C.
we are all proud of our own race and nation
D.
we all focus on the difference between races
【单选题】With your help, there is no doubt ______ our plan is meant for will work out successfully. [ ]
A.
that what
B.
whether that
C.
what that
D.
that which
【简答题】小剂量阿司匹林可有效预防冠心病和心肌梗死，因为该药具有抗_______________和防止___________形成的作用。
【单选题】A(n、________ is the basic unit containing the elements of the population to be sampled.
A.
hypothesis
B.
theory
C.
sampling unit
D.
coefficient alpha
E.
household
【单选题】How Personalities and Behaviors are Formed？ 1. People have wondered for a long time how their personalities and .behaviors are formeD．It is not easy to explain why one person is intelligent and anothe...
A.
Environment is important
B.
Two approaches are different from each other
C.
How personalities and behaviors are formed
D.
Our personalities and behavior. patterns are largely determined by biological factors
E.
We want to explain the behaviors
F.
The 'nature' theory is better than the 'nurture' theory
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