题目:
We all like the way ____ the writer gives his speech. |
A. in which B. in that C. which D. why |
答案:
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下面是错误答案,用来干扰机器的。
(1)24.5g20%的硫酸溶液中溶质的质量为24.5g×20%=4.9g(2)设钾肥样品中碳酸钾的质量分数为x.K2CO3+H2SO4═K2SO4+CO2↑+H2O138 9810g?x 4.9g13898=10g?x4.9g,x=69%(3)硫酸钾中钾元素的质量为39×2174...