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【判断题】
根据电容器电容量的定义式C=Q/U，可知电容量与电荷量成正比，与两端的电压成反比。
A.
正确
B.
错误
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【简答题】一件商品打九折后，现在的价格是990元，仍可获利10%．这件商品的成本价是多少元？这件商品的原来的价格是多少元？
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and
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【单选题】I hope _____ a good trip. [     ]
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have
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you have
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you to have
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【单选题】I'll _____ that I'm a qualified engineer. A have you know B have known you C have you
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【单选题】Could you tell me how long __________ the football club?
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【单选题】是消费者购买商品时愿意支付的实际价格。
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【单选题】How long _____ here in our city? [     ]
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【单选题】________ a baseball? [     ]
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【简答题】一件商品打九折后，现在的价格是990元，仍可获利10%．这件商品的成本价是多少元？这件商品的原来的价格是多少元？
查看完整题目与答案
【单选题】You have runners, ____________ do you have a T-shirt? [     ]
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and
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【单选题】I hope _____ a good trip. [     ]
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【单选题】是消费者购买商品时愿意支付的实际价格。
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商品的成本费用 C．商品的交通费用加销售价格 D．商品的最低售价
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