97免费在线观看视频,亚洲综合自拍网,黄色毛片免费观看,热久久综合网,免费看日产一区二区三区狠狠操av,久久久涩涩涩,在线精品免费视频,人人插天天干,久久91精品国产91久久

<dfn id="yacq9"></dfn>

<xmp id="yacq9"><del id="yacq9"></del></xmp>

<optgroup id="yacq9"></optgroup>

單項(xiàng)選擇題

Roll-on/roll-off ships are equipped with（）.

A.cargo elevators
B.conveyor belts
C.ramps
D.derricks and winches for cargo handling

你可能感興趣的試題

單項(xiàng)選擇題

Shall we（）wait at the roadstead till there is a free berth for us?

A.must
B.ought to
C.have to
D.never

單項(xiàng)選擇題

Ship is（）position.

A.in
B.on
C.of
D.at

<strong id="pco6p"></strong>