问题
单项选择题
The falls on gravity davits are（）.
A.manila
B.nylon
C.wire
D.All of the above
答案
参考答案：C
搜题请搜索小程序“爱下问搜题”
The falls on gravity davits are（）.
A.manila
B.nylon
C.wire
D.All of the above
参考答案：C