单位和职工个人缴存住房公积金的月平均工资不得超过职工工作地所在设区城市上一年度职工月平均工资的（）倍，具体标准按照各地有关规定执行。

A.1

B.2

C.3

D.4

He looked around ________ in search of something.

A．though

B．as though

C．even though

D．although