燃煤、燃油或燃气锅炉、油浸电力变压器、充有可燃油的高压电容器和多油开关等用房宜独立建造。当确有困难时可贴邻民用建筑布置,但应采用防火墙隔开,可贴邻人员密集场所。
参考答案:错
下列物质中既能导电又属于强电解质的是 [ ]
A.KCl(aq)
B.KNO3(l)
C.HCl(l)
D.Ba(OH)2(s)
From time to time a crocodile has snatched someone _______ he or she is even aware that the crocodile is there.
A.when
B.until
C.since
D.before