----- Why don’t you do some shopping in the second-hand store ?

------ Well, the goods there are _____, but _____.

A．more expensive; worse

B．more expensive; not as bad

C．cheaper; good enough

D．cheaper; not as good

渗透剂的渗透时间是（）

A、保持不干状态10～15分钟

B、第一遍干燥后，再涂第二遍的时间间隔

C、1～2分钟即可

D、全不对