A:甲的溶解度比乙大
B:t2℃时,甲、乙的两种溶液中溶质的质量分数相等
C:t1℃时,将50g水加入15g甲物质中,可得到65g溶液
D:要使接近饱和的乙溶液转化为饱和溶液,可采用蒸发溶剂的方法
— Did you listen to Li Yundi _____ the piano yesterday evening?
— Yes. He played _____ and all the audience clapped loudly at the end.
①f(﹣x)=﹣f(x);
②f( 2x1+x2 )=2f(x)
③|f(x)|≥2|x|
其中的所有正确命题的序号是( )