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创建时间资源类别 相关度排序

共找到 330 与by为什么相关的结果，耗时131 ms

已知直线的方程,Ax+By+Cz+D,空间直线的方向向量为什么就是（A,B,C）呢?Ax+By+C=0的2维空间法向量是（A,-B）呃,为何三维是那样呢?这在线代里我一直不太明白额. 数学

she was moved entirely by what she saw为什么用by? 英语

select * top 99 percent from 职工 order by case when 工资 is null then 1 else 0 end 哪里出错了select * top 99 percent from 职工 order by case whe 其他

工资 is null th

求解释英文数学题If the total energy usage today has reduced by 6% compared to that of year 2000, by how much is today’s usage 我觉得应该是用2000年时的数字英语

以94%,而答案却是用它除以

The sheep ----farmed for meat by theold man,which is said to ----by a scientist yesterday.A is；be bought B are；be bought C is；have bee 英语

bought D are

We have studied English for 3 years.被动语态为什么是 English has been studied fou 3 years by us 而不是 English has been studied by us for 3 years 英语

English is spoken by many people.（为什么要用by?) 英语

Rice is grown in south China by them.为什么用by呢? 英语

They have known him_to have been arrested___(arrest) by the police.划线上为什么用不定式的被动语态啊,应该没有know sb to 还有为什么是不定式被动语态的完成时啊，主要是两点：1.为什么是英语

不定式 2.为什么是完成时态

英语语句解释以及分析填空部分To some extent,it is the awareness of the importance of communication that leads to the invention of various means( by ) 英语

hich messages

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