城镇基本医疗保险，个人需要缴纳的比例占其工资额的百分之几？（）
A.1%
B.2%
C.3%
D.不需要缴纳
参考答案：B
As a saying goes, the wise man knows he knows nothing, _________ the fool thinks he knows all.
A．when
B．while
C．as
D．though
信用卡透支是怎么收费，透支几天收费，几号开始收费，为什么我的信用卡透支几天就收费？
