对储存期超过2年的干式铅蓄电池，使用前应补充充电，充电时间应在（）小时。
A、2~5
B、5~10
C、10~15
D、15以上
参考答案：B
He was always sleeping in class. Much to ___, he____first.
A．us surprise; came out
B．our surprise; came out
C．our surprised; came out
D．our surprising; came out
沥青主要有哪些用途？
