高压断路器的合闸时间≤（）s
A、0.01
B、0.06
C、0.2
D、0.15
参考答案：C
Li Gang, a police officer, said that little about what his son _____ he know the moment all the media reported the traffic accident _____ in Hebei University．
A．did do; happened
B．would do; happening
C．could do; happened
D．did did; happening
下列语句中，获得列表框List1中项目个数的语句是（ ）。
A． x=List1．ListCount
B． x=ListCount
C． x=List1．ListIndex
D． x=ListIndex
