你可能感興趣的試題

單項(xiàng)選擇題

During the day，a vessel picking up a submarine cable shall carry（）.

A.Three shapes，the highest and lowest shall be red balls，and the middle shall be a white diamond
B.Two black balls
C.Three shapes；the highest and lowest shall be black balls，and the middle shall be a red diamond
D.Three shapes；the highest and lowest shall be black balls and the middle shall be a black diamond

單項(xiàng)選擇題

Dring a period of “whiteout”，you should expect which of the following（）.

A.Snowfall or blowing snow
B.Lack of ability to estimate distance
C.Harsh contrast between sun-illuminated snow cover and the background
D.Hazy horizons with extensive mirage effects

<nobr id="tuxhv"></nobr><nobr id="tuxhv"><pre id="tuxhv"></pre></nobr>

Every vessel shall（）maintain a proper look-out by sight and hearing as well as by all available means appropriate in prevailing circumstances and conditions so as to make a full appraisal of the situation and of the risk of collision.

你可能感興趣的試題

During the day，a vessel picking up a submarine cable shall carry（）.

Dring a period of “whiteout”，you should expect which of the following（）.

During the day，a vessel picking up a submarine cable shall carry（）.

Dring a period of “whiteout”，you should expect which of the following（）.