无码高清视频|成人自拍视频|欧美成人午夜无码A片秀色直播|草美女视频网站|美女被操网站在线观看

單項選擇題

During which condition should the operator of a pedestal crane shutdown operations?（）

A.Lightning in the vicinity
B.An approaching squall line
C.A fire on the pier
D.All of the above

你可能感興趣的試題

單項選擇題

During which condition should the operator of a pedestal crane shutdown operations?（）

A.Lightning
B.High winds
C.Fire aboard
D.All of the above

單項選擇題

During which condition should the operator of a pedestal crane shutdown operations?（）

A.Bunkering barge alongside
B.Potable water spill on deck
C.Crane hydraulic hose bursts
D.Trim greater than 4 feet

<pre id="i2kkh"></pre>

<pre id="i2kkh"><acronym id="i2kkh"></acronym></pre>

<ruby id="i2kkh"><xmp id="i2kkh"></xmp></ruby>

<dl id="i2kkh"></dl>