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【判断题】
体育舞蹈是花样滑冰、花样游泳、艺术体操等项目之后,又一个体育与艺术有机结合的一项运动。A.
正确
B.
错误
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【简答题】8 There's a ____ to view children in the UK, and in the Western world in general, as ____ and ____ . But this isn't the case throughout the world. In many societies children work and contribute to the...
【单选题】What isn't said about the case with PCBs?
A.
An accumulation of PCBs in the human body is the direct reason of the cancer and other severe disorders.
B.
PCBs can't be disintegrated using conventional waste-treatment ways.
C.
PCBs are degraded by natural processes very slowly.
D.
PCBs have been found in high contents in the fatty tissues of fish.
【简答题】OHV engines almost always have only 2 valves per ____but this isn't always the case.
【简答题】Isn't the case ______________big to be there?
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