题目

— Does he like English?— ______ A . Yes, he is. B . No, he doesn't. C . Yes, she does. D . No, she doesn't. 答案：B乙醚（一种比水轻的液体）倒入水中，部分互溶，且分为上下两层，则上层的液体叫________的________溶液，下层的液体叫________的________溶液．