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问题
判断题
两部制电价将电价分为电度电价和基本电价。
答案
参考答案:对
判断题
两个有理数的和是负数,它们的积是正数,则这两个数都是负数。[ ]
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选择题
—How often does Mike go to his driving lesson?
—__________.
A. Once
B. Two times a week
C. For two hours
D. Once a week
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