下列是不良的生活习惯是( )。
A:吸烟
B:按时起床
C:酗酒
已知集合B={x|﹣3<x<2},C={x|2x﹣1≥0}.
(1)求B∩C,B∪C;
(2)设函数f(x)=log22x+m的定义域为A,且A⊆C,求实数m的最大值.
配制0.1mol•L﹣1NaCl溶液,下列操作会导致所配溶液的物质的量浓度偏高的是( )
— Have you seen the film called The trouble with Teenagers?
—Yes, but I don't think it is worth _______.