An immersion suit must be equipped with a(
题型:单项选择题
问题:
An immersion suit must be equipped with a(n)().
A.air bottle for breathing
B.orange smoke canister
C.whistle,light and retroreflective material
D.sea dye marker
An immersion suit must be equipped with a(n)().
A.air bottle for breathing
B.orange smoke canister
C.whistle,light and retroreflective material
D.sea dye marker