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【单选题】
中国外交的胸怀是( )A.
独立自主
B.
天下为公
C.
互利共赢
D.
外交为民
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举一反三
【简答题】Most people his failure was the result of his lack of preparation. But in fact, it was because of his carelessness.
【简答题】curiosityassumechallengeattaingiantdespairembraceresponsibilitycareerboast4. Most people _________ his failure was the result of his lack of preparation. But in fact, it was because of his carelessnes...
【单选题】In fact, it was recently suggested that fraud now is “endemic in many scientific disciplines and in most countries” and may _________ the credibility of scientific research.
A.
underlying
B.
underscore
C.
undermine
D.
undertake
【简答题】下列叙述中属于描述铁的化学性质的是（ ） A．铁在高温下加热到1535℃时变成铁水 B．铁是热和电的良导体 C．铁质软并有良好的延展性 D．铁在潮湿的空气中易生锈
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