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问题 判断题

注水孔沿煤壁单排布置，距顶梁0.4－0.7m，间距3－6m，眼深不低于4m，根据煤厚情况注水孔与煤壁夹角0－45度之间，保证顶梁以上1.5m范围煤体充分湿润。（）

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填空题

如图所示，是某商店出售的一套电源插座和插头，请你从安全用电的角度说明，该电器产品不符合安全用电规则的地方是____________________________。
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单项选择题

听句子，缩写原文。（）

A．Supermarkets in the inner city and the suburbs are usually owned by the same company.

B．Products in grocery stores are more expensive than those in supermarkets.

C．There is a price difference for the same product even in shops run by the same company.

D．People prefer to shop in supermarkets, which are mostly located in the suburbs, with free parking space.
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