问题
单项选择题
Precautionary measures must be taken to（）safety of the steredortes, cargo and the ship.
A.insure
B.ensure
C.assure
D.assume
答案
参考答案：B
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Precautionary measures must be taken to（）safety of the steredortes, cargo and the ship.
A.insure
B.ensure
C.assure
D.assume
参考答案：B