题干
—Many people in big cities cannot enjoy life even though they have houses, cars and ideal jobs.
—Sub-health may partially ______ it．
A：stand for
B：call for
C：answer for
D：account for
答案(点此获取答案解析）
D
通入一定量的氯气，再向反应后的溶液中滴加KSCN溶液，结果溶液变为红色，则下列叙述正确的是( )
能确定通入氯气后的溶液中
白色沉淀，说明原溶液中的I－、F