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="48p70"><xmp id="48p70"></xmp></ruby>

單項(xiàng)選擇題

Four （）are needed to work this heavy derrick.

A.winches
B.gears
C.windlass
D.cranes

你可能感興趣的試題

單項(xiàng)選擇題

This （）was repaired in Singapore.

A. damaged derrick
B. damaging derrick
C. derrick to be damaged
D. derrick

單項(xiàng)選擇題

Push the “Oil Jack” position （）until the cover comes to its final closed position.

A.lifted
B.lowered
C.opened
D.closed

<pre id="pctcx"><legend id="pctcx"></legend></pre><pre id="pctcx"><legend id="pctcx"></legend></pre>