篮球比赛时，5号队员一脚踩在端线上掷界外球，裁判员判其：（）
A、违例
B、不违例
C、重新站在线外掷界外球
参考答案：B
You have never been to the USA before,have you ?
______ . How I wish I could go there some day
A．Yes,I have
B．No, I haven’t
C．No,I have
D．Yes,I haven’t
矿山安全技术
被动式隔爆棚的设置方式有岩粉棚、水袋棚、( )。
A．防尘棚
B．水槽棚
C．石灰粉棚
D．煤粉棚
