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共找到 777 与D为什么对 相关的结果,耗时1100 ms
1.We have lived in the house _____10 years.A.about B.for C.since D.more than选A为什么不对?6.Daniel taught_____how to make a home page A.him
英语
.himself为什么不选A
don't all speak at once!_please.A.Each at one timeB.One by one timeC.One for each tineD.One at a time是D,但是C为什么不对关键是C为什么不对。。。
英语
I want to use the same tools____used in your family a few days ago.I want to use the same tools ______used in your factory a few days
英语
go.A.as was B.
13.What ____ do you want to say?A.other B.another?C.else D.others.请解释下为什么other和others为什么不对?
英语
He will have to stay in hospital.That’s what he____a has done b must do c must be doing d must have done为什么C不对呢
英语
Excuse me ,can you tell me ____________?A.why was the train late B.why is the train late C.why the train was late D.why the train is l
英语
te ,C为什么不对啊?
there are () students in our schoola fortyb fourtyc fifty-five d sixty five我认为ac都对,但答案说只有A对,为什么?
英语
My brother and l___do___after-school activities.A.often;any B.never;some C.seldom;some D.never;any我知道答案是D,但是我觉得C也算对,摆脱高人解释一下为什么C不对或对
英语
求球面:x^2+y^2+z^2=a^2含在圆柱面x^2+y^2=ax内部的那部分面积.由于对称可以看成在XOY的投影y>0,x^2+y^2=ax则面积A=4a∫dθ∫[1/[(a^2-r^2)]^1/2dr其中(θ取值为0到π/2,r取值为0到acosθ),为什么把他
数学
成其投影式在xoy面上的整个
14.在图6所示的滑轮组中,用110N的力在5s内把重为200N的物体匀速提高2m,则A.对重物做的有用功约为200J B.滑轮组的机械效率约为90%C.拉力做的总功约为220J D.拉力的功率约为44W为什么选B?
物理
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