问题
单项选择题
The list of Coast Stations is republished（）in a trilingual.
A.every two years
B.every three years
C.every year
D.every four years
答案
参考答案：A
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The list of Coast Stations is republished（）in a trilingual.
A.every two years
B.every three years
C.every year
D.every four years
参考答案：A