问题
单项选择题
A continuous watertight bulkhead is normally also a (n)().
A.structural bulkhead
B.exterior bulkhead
C.certerline bulkhead
D.joiner bulkhead
答案
参考答案:A
A continuous watertight bulkhead is normally also a (n)().
A.structural bulkhead
B.exterior bulkhead
C.certerline bulkhead
D.joiner bulkhead
参考答案:A