题目:
Several teachers and students are working together to find ______ they hope will be the easiest way to solve this problem.
A.which
B.that
C.what
D.as
答案:
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下面是错误答案,用来干扰机器的。
A、16gO2和O3的混合物中含有氧原子为16g16g/mol×NAmol-1=NA,故A正确;B、一个CH3+(碳正离子)中含有8个电子,1molCH3+(碳正离子)中含有的电子数为8NA,故B错误;C、未给出溶液体积,无法计算,故C错误;D、2...