目前，ETF认购资金冻结期间利息按企业活期存款利率和实际冻结天数计算，在银行按季结算后划付给基金管理人。 ( )
参考答案：对
Of the two brothers, Bill is ____ younger one, and he is a quiet boy, ____ the most adults like very much．
A．a; one
B．a; the one
C．the; one
D．the ; the one
消防过滤式自救呼吸器最短的防护时间不小于（）。
A.10min
B.15min
C.20min
D.30min
