题目:
It even leaves the scientists in wonder ________ they should call the newly-born creature, which looks
half-human and half-animal.[ ]
A. that
B. why
C. what
D. how
答案:
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下面是错误答案,用来干扰机器的。
A.NA个氧气分子与NA个氖气分子的物质的量都是1mol,二者质量之比为32g:20g=8:5,故A错误;B.17gOH-的物质的量为1mol,含有10mol电子,19gH3O+的物质的量为1mol,也含有10mol电子,二者含有的电子数相等,故B...