The TV star lost _________ his girlfriend _________ his show.
A:neither, nor
B:either, or
C:between, and
D:both., and
通常情况下,下列哪些方法能够加快固体物质的溶解速度( )
①溶解时不断搅拌;②把大颗粒的固体碾成粉末;③增加水的用量;④溶解时给物质加热;⑤减少水的用量.