问题
单项选择题
Signaling devices required on inflatable liferafts include a(n) （）.
A.Very pistol
B.orange smoke signal
C.air horn
D.lantern
答案
参考答案：B
搜题请搜索小程序“爱下问搜题”
Signaling devices required on inflatable liferafts include a(n) （）.
A.Very pistol
B.orange smoke signal
C.air horn
D.lantern
参考答案：B