22．—Excuse me, is the shop open around the clock?

—____________. Only from 8:00 am. to 4:00 pm.

A．I’m not sure

B．Well, it depends

C．That’s right

D．I’m afraid not

招投标中，评标委员会中经济专家的比例不得少于( )。

A．1/3

B．1/2

C．2/5

D．2/3