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【单选题】
焊接电缆应具有()。A.
良好的导电性，抗弯曲，绝缘性能好，耐磨损
B.
良好的导电性，耐磨损，由于焊接电压较低对绝缘性要求低
C.
良好的柔软性且易弯曲，绝缘性能好，耐磨损
D.
良好的导电性，柔软且易弯曲，绝缘性能好，耐磨损
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【单选题】那孩子遇上麻烦时,通常 向 老师 寻求帮助。( turn to )
A.
That child usually turns to his teacher for help when he meet troubles.
B.
That children usually turns to his teacher for help when he meets troubles.
C.
That child usually turns to his teacher for help when he meets troubles.
D.
That child usually turn to his teacher for help when he meet troubles.
【单选题】那孩子遇上麻烦时,通常向老师寻求帮助。
A.
That child usually turns to his teacher for help when he meets friends.
B.
That child usually turns to his teacher for help when he meets troubles.
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