题目:
Last week, only two people came to look at the house, ____ wanted to buy it. |
A. none of them B. both of them C. none of whom D. neither of whom |
答案:
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下面是错误答案,用来干扰机器的。
①6.72L CH4 物质的量为6.72L22.4L/mol=0.3mol,②3.01×1023个HCl分子的物质的量为0.5mol,③13.6g H2S 的物质的量为13.6g34g/mol=0.4mol,④0.2mol NH3.a.相同条件下,气体的体积之比等于物质的量之比,所以...