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- 1时间单位起源于地球( )和( )产生的四季和日夜交替现象
- 2My grandfather is ill.He___(must send)to hospital at once.He___(should take)good care of.
- 3物体的密度乘以体积表示物体的重量还是质量?
- 4they could not go out because ___of them have ___money on them.选all,no 还是选none,any 为什么?
- 5在复杂电路中判断电压表测量对象
- 6在数列1,1,2,3,5,8,13,x,34,55…中的x的值是_.
- 7You needn't worry about it.(同义句转换) You ______ ______ ______ worry about it.
- 8锦联华超市为应对国际金融危机,在处理某种商品时,有如下几种方案:①、先提价20%,再降价20%;②、先降价20%,再提价20%;③、先提价15%,再降价15%. 问:用这三种方案调价结果是否都
- 9This table is made of _.A.some glasses B.glass
- 10化简2(4x-6y)-3(2x+3y-1) ,化简1÷2(2x-4y)+2y ,