题型:问答题 简答题 –The classroom is_____ clean_____ it was yesterday.--Sorry, I forgot to clean it.A.as, asB.so, asC.not so, asD.more, than 查看答案
题型:问答题 简答题 China not only will endeavor to curb its population growth, but will also upgrade the education of its citizens.A.will not only ... but also willB.will not only ... but also willC.will not only ... but alsoD.not only ... but will also 查看答案
题型:问答题 简答题 如图所示,ABCDEF为一个正六边形,现以A为顶点向其它各定点作矢量线段,并用它们依次表示F1….F5等各力,若其中F3的大小恰为5N,那么这五个力的合力为多大,方向如何?A.15N与F3同向B.30N与F3同向C.15N与F1同向D.30N与F2同向 查看答案