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- 1这是Sam自己的书 英语怎么说?
- 2满足两条直角边长均为整数,且周长恰好等于面积整数倍的直角三角形的个数有（ ）个
- 3已知a,b,c为实数,且有a等于十减b,c的平方等于ab减25,求b分之a
- 4一条公路,工程队已经修了一部分,剩下40米,恰好是这条路的5/8,这条路长多少米?
- 5底物浓度一定时,酶的浓度越高,反应速率越快吗?
- 6一块梯形油菜地,上底长70米,下底长80米,共收油菜籽4125千克.平均每公顷产
- 7Everything went on as usual as though nothing had happened.这句话中词组as though是好像的意思
- 8She started to have a fever three days ago把时间划了怎么提问啊前2个空+个she后5个空
- 9Mom has_____(many) housework todo every day.这里是用much还是many
- 10工地上要用一种等腰三角形的钢筋架,腰长0.45米,底边长0.22米,做一千个这样的钢筋架需多少米钢筋架?