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【单选题】
在自行车下列连接中,属于运动副的是_____。A.
前叉与轴
B.
链条与链轮
C.
辐条与内圈
D.
轮胎与钢圈
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反馈参考答案：
举一反三
【简答题】In China, parents often tell their kids not to waste food. However, it's reported that a lot of food is wasted in restaurants every day. Many people say when they eat out, they usually order a lot of ...
【简答题】Food is scarce and more often than not they go hungry. (英译汉)
【单选题】Food was ________ during the famine. It was often seen that people sold their children for a sack of corn.
A.
available
B.
less
C.
few
D.
scarce
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