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- 1我要把Mpa换算成mmAq,查百度百科却发现:1毫米水柱(mmH2O)=9.80665帕(Pa) 1工程大气压=98.0665千帕(kPa).难道1pa=10kpa?到底怎么换算啊
- 2正比例函数y=kx和一次函数y=2x+b的图象交于点P(-2,1),求出两个函数表达式?
- 3圆的直径和周长成_比例.
- 4已知i是虚数单位,则复数1-2i的虚部为_.
- 5What's Tom doing?He___(swim)in a river with his brother.
- 6大写英文的意义
- 7T----- the m----- cake,please.Is it delicious?
- 8某食堂七月份烧煤25.5吨,比六月份节约百分之十五,六月份烧煤多少吨?
- 9I have ____ this book.You can take it away.A.to read.B.read.C.reading.D.reads
- 10将2克碘完全溶于60毫升的酒精中,所得溶液称为碘酒,问:(1)所得的碘酒溶液溶质质量分数为多少?(2)小黄