题目

关于比较溶解快慢的实验中，下列说法正确的是（ ） A . 不断地往烧杯中加食盐 B . 烧杯里的水可以不一样多 C . 实验中只有一个条件改变 答案：CThough the girl had been suffering from the blood disease, she acted as if nothing______ to her while facing her friends and relation.A.happenedB.would happenC.was happenedD.had happened