问题
单项选择题
（）the time of collision，the 3rd officer was on the bridge．
A.At
B.On
C.Of
D.In
答案
参考答案：A
搜题请搜索小程序“爱下问搜题”
（）the time of collision，the 3rd officer was on the bridge．
A.At
B.On
C.Of
D.In
参考答案：A