A liferaft shall be capable of being readily, ______ by one person if it inflates in an inverted position.(1.0)
A.vertical B.straightened C.lefted D.righted正确答案D
A liferaft shall be capable of being readily, ______ by one person if it inflates in an inverted position.(1.0)
A.vertical B.straightened C.lefted D.righted正确答案D