若“五·一”假期你到日本旅游,不能进行的项目是[ ]
A.泡温泉
B.滑雪
C.赏樱花
D.雨林探险
答案:D
_ we were walking along the river, we heard a cry for help.
A.While
B.Until
C.After
D.Before
中深爆破的孔深一般是()
A.<2m
B.≥2.5m
C.≥5m