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

<ruby id="dnojy"><output id="dnojy"></output></ruby>

<pre id="dnojy"><strong id="dnojy"></strong></pre>

<ruby id="dnojy"><xmp id="dnojy"></xmp></ruby>

單項(xiàng)選擇題

A （）is at the end of the cargo runner for picking up the load.

A.sling
B.hook
C.block
D.tackle

你可能感興趣的試題

單項(xiàng)選擇題

The （）is fixed at the bottom of the derrick.

A.gooseneck
B.block
C.derrick step
D.crane

單項(xiàng)選擇題

The （）is pumped onto the ship at the loading port by shore pumps.

A. oil
B. gas
C. water and fuel
D. timber

<blockquote id="un5zt"><acronym id="un5zt"></acronym></blockquote>