无码高清视频|成人自拍视频|欧美成人午夜无码A片秀色直播|草美女视频网站|美女被操网站在线观看

<strong id="yt4oj"></strong>

單項(xiàng)選擇題

The emergency alarm is sounded on （）(汽笛) according to master’s order.

A.VHF
B.whistle
C.broadcast
D.sextant

你可能感興趣的試題

單項(xiàng)選擇題

There is a smell of gas in the hold. You must wear your （）(氧氣面罩).

A. fire mask
B. breathing apparatus
C. life-jacket
D. fire drill

單項(xiàng)選擇題

Prepare for （）(棄貨) cargo.

A.jettisoning
B.lowering
C.hoisting
D.abandoning

<blockquote id="mxor9"></blockquote>

<pre id="mxor9"></pre>