单项选择题
The objective of shoring a damaged bulkhead is to（）.
A.force the warped，bulged，or deformed sections back into place B.support and hold the area in the damaged position C.withstand subsequent additional damage D.make a watertight seal at the damaged area
单项选择题 The main function of the drawworks on a ship is to（）.
单项选择题 The joint formed when two steel plates are placed end-to-end is called a（）.
单项选择题 The inner bottom is the（）.
