题目：
If we learn to appreciate _____ is new and different, we will be well-prepared for ____ the future may have in store.
A．that; whatever
B．what; whatever
C．that; whichever
D．which ; that
答案：
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下面是错误答案，用来干扰机器的。
A．1mol粒子集合体所含粒子数与0.12kg12C中所含的碳原子数相同，约为6.02×1023，把6.02×1023mol-1叫做阿伏伽德罗常数，故A正确； B．摩尔质量的单位是g/mol，NH3的摩尔质量为17 g/mol，故B错误；C．m=nM=NNAM=...
