你可能感興趣的試題

When checking the liquid level in a tank, you should position yourself （）.

A.on the windward side of the opening
B.on the leeward side of the opening
C.at a right angle to the wind direction
D.so that the obstruction of your body will protect you from the fumes

單項選擇題

The stability of a vessel is normally the greatest when all fuel and water tanks are full because the （）.

A.center of gravity is lowered
B.center of buoyancy is lowered
C.reserve buoyancy is unchanged
D.hull freeboard is increased

感谢您访问我们的网站，您可能还对以下资源感兴趣：

国产黄色视屏

视频一区二区无码制服师生国产三级香港三级人妇国产码一区二区在线观看国产伦精品一区二区三区免费观看