航海英語船舶強(qiáng)度資料單項(xiàng)選擇題每日一練(2019.01.09)

來源：考試資料網(wǎng)

1 How is a safe water mark，that can be passed close aboard on either side，painted and lighted?（）

2 How does a coast radio station communicating by HF radio normally identify itself?（）

3 How is the external flotation bladder of an immersion suit inflated?（）

4 Hanging a barge off means to（）.

5 For optimum stability during jacking operations，mat ballast tanks or spud cans should be（）.