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- 1( )/( )=0.6 括号里填数字
- 2已知函数∫(x)x∧2+X-16,求曲线y=f(x)在点(2,-16)处的切线方程
- 3@转换:He didn't go to bed until he finished his homework last night.是要改until~可以将它换成before吗?要两句,呢还可以换成:He got to bed when t
- 4many people in other countries ride bicycle ____fun and exercise.
- 5用十字交叉法解化学题.铁、锌合金8.85g溶于稀硫酸中,充分反应后制得氢气0.3g,求合金中铁、锌的质量.
- 6,Holly has _fed the dog ,but she hasn's watered the plants_.A.still ;already B.already,yet C.yet,still D.yet,already麻烦
- 7The pair of glasses __Tom's .____new.A.are,They are B.is,They are C.are,It is D.is,It is选哪个
- 8硫酸铜溶液中通入硫化氢反应离子方程式
- 9如图所示,在一辆表面光滑的小车上,放有质量分别为m1、m2的两个小球,随车一起作匀速直线运动.当车突然停止运动,则两小球_相碰(选填“会”或“不会”)(设车无限长,其他阻力
- 10一个四位数,减去它各位上数字之和,其差还是一个四位数134*,这个*是( )