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【判断题】
(-------)验电是保证电气作业下安全的技术措施之一
A.
正确
B.
错误
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B.
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【简答题】i could never be so _______ without your help. 成功的
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【单选题】I could never be so ___________without your help.
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【简答题】I could never be so ______ (成功的) without your help.
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【单选题】Mr Li always ______ weekends playing ping pang with his son. [     ]
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