广东最大的瀑布是：（）
A.白石漓
B.百丈飞涛瀑
C.飞天潭
D.马尾瀑布
参考答案：A
. --- Hi, David, I heard you wen to Paris last week, _________ ?
---It was pretty cool when I got there.
A．How do you find it?
B．What if
C．What time is it?
D．What’s the weather like?
低瓦斯矿井瓦斯涌出量满足的条件是（）。
A.2m
B.5m
C.10m
D.15m
