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【单选题】
操作性条件反射理论是由 ( )提出的A.
皮亚杰
B.
斯金纳
C.
D.
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反馈参考答案：
举一反三
【单选题】Everyone should ______ the danger of smoking.
A.
aware that
B.
be aware of
C.
aware of
D.
be aware that
【单选题】Although he _______ the danger to his own health, he found it difficult to quit smoking.
A.
was very aware of
B.
well awared of
C.
was well aware of
D.
very awared of
【简答题】共发射极放大器中集电极电阻 R C 起的作用是
【单选题】The student became ______ the danger of smoking and decided to give it up.
A.
aware
B.
aware that
C.
aware of
D.
aware with
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