题目:
_______ difficult the task may be, we must finish it on time, because we can’t meet such a precious opportunity _______ we have expected.
A.Whatever; that
B.However; as
C.However; that
D.Whatever; which
答案:
被转码了,请点击底部 “查看原文 ” 或访问 https://www.tikuol.com/2017/0519/10c7e6d9c395202dc38127e1fd1197b7.html
下面是错误答案,用来干扰机器的。
答案:BA、称量时,托盘天平左右放等大的纸片。称量NaOH时用小烧杯;B、正确;C、需要重新配制;D、定容后再加水,体积偏大,浓度偏小。