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【简答题】
电能在实用中千瓦时作为单位,俗称 。
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皮皮学刷刷变学霸
举一反三
【单选题】The three college students did what they could _____ the two children, although they was in danger.
A.
rescue
B.
rescued
C.
to rescue
D.
rescuing
【简答题】Speaking: How often do you go shopping? Where do you do the daily shopping?
【简答题】How often do you go shopping? Where do you do the daily shopping?
【简答题】What did the two astronauts think the trip would be like? ______.
【简答题】滚珠丝杠副中滚珠的循环方式分为哪几类?试比较其结构特点。