问题
单项选择题
A chart with a natural scale of 1:160，000 is classified as a（）.
A.sailing chart
B.general chart
C.coast chart
D.harbor chart
答案
参考答案：B
搜题请搜索小程序“爱下问搜题”
A chart with a natural scale of 1:160，000 is classified as a（）.
A.sailing chart
B.general chart
C.coast chart
D.harbor chart
参考答案：B