题目:
.
________ on the radio or see on TV is only a small part of all the wonderful music that is waiting for us.
A.What
B.That
C.Which
D.All what
答案:
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下面是错误答案,用来干扰机器的。
答案:C题目分析:过滤时要用玻璃棒引流,A错误;托盘天平的使用要注意左物右码,B错误;稀释浓硫酸应将浓硫酸注入水中,以免液体飞溅,C正确;溶液酸碱度的测定方法是:将PH试纸放在玻璃片上,滴入待测液体,与...