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问题
判断题
100kV•A及以下的非工业用户不实行《功率因数调整电费办法》。
答案
参考答案：错
选择题
New technology _____ to make sure the cars, taxis, buses and trains we use _____ the air.
A. is used; not to pollute
B. has used; is not polluted
C. is being used; do not pollute
D. has been used; not pollute
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判断题
资金贷出者和投资者的心理预期是引致金融风险的间接因素。( )
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