题目

根据右图溶解度曲线，判断下列说法正确的是 A．t1℃时，甲的溶解度大于乙 B．t2℃时，甲、乙两溶液的溶质质量分数一定相等 C．t3℃时，将甲、乙的饱和溶液都蒸发掉10g水，甲析出的晶体质量大 D．把t1℃时甲、乙的饱和溶液升温至t3℃时，两溶液的溶质质量分数都会增大 答案：CI had to prepare for the final exam. That's ________ I was absent from the party yesterday.A.whenB.whyC.howD.what