The whole area was _____ by the snow, and the government had to send food there by helicopter. [ ]

A. cut away

B. cut up

C. cut off

D. cut down

下列有关引航员软梯的提法不符合S0LAS公约的要求的是（）。

A.当从海面到登船入口处的距离超过9米时，不可单独使用软梯

B.应配有二根系牢于船上的扶手绳

C.应备有一根撇缆绳

D.软梯的装设和引航员的登离应由水手长负责和管理