随着人们环保意识的日益提高，节水型洁具逐渐进入百姓家庭．所谓节水型洁具，是指每冲洗一次的耗水量在6L以内的洁具．某家庭新安装了一套耗水量为5L的节水洁具，而原有的洁具每次耗水量为9L．问：_刷题宝

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随着人们环保意识的日益提高，节水型洁具逐渐进入百姓家庭．所谓节水型洁具，是指每冲洗一次的耗水量在6L以内的洁具．某家庭新安装了一套耗水量为5L的节水洁具，而原有的洁具每次耗水量为9L．问：

上一题下一题 0.0难度选择题更新时间:2014-08-22 04:43:32

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Mike is a middle school student. He is 16 years old. He had a bad cold last night. He felt bad and couldn't eat anything. So he went to see a doctor. The doctor gave him a bottle of medicine. But he doesn't know when to take the medicine. Can you tell me what the doctor means? These are the instructions (用法说明):

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