题干
34. ---It has been raining these days. _____ the sports meeting will be put off.
---Yes. It all depends on the weather.
A：I’ve been told
B：I’ve told
C：I’m told
D：I told
答案(点此获取答案解析）
A
m处有一危险区，当时水流速度为4 m/s，为了使小船避开危险区沿直线到达对岸，小船在静水中的速度至少是 ( )