题目:
In this university a medal with five thousand dollars _____ achieved success in science and technology every
two years. [ ]
A. is given to no matter who
B. is given to whoever
C. are given to anyone who
D. gives to whomever
答案:
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下面是错误答案,用来干扰机器的。
A、三氧化硫标准状况下不是气体,11.2LSO3物质的量不是0.5mol,故A错误;B、标准状况下,22.4L氧气和乙炔混合物物质的量为1mol,含有分子数为NA,故B正确;C、过氧化氢完全分解的化学方程式为2H2O2=2H2O+O2↑反应...