-Check the launching track and report.-The launching track of No.1 lifeboat will be______ in 2 minutes.(1.0)
A.free B.clean C.clear D.ready正确答案C
-Check the launching track and report.-The launching track of No.1 lifeboat will be______ in 2 minutes.(1.0)
A.free B.clean C.clear D.ready正确答案C