问题
单项选择题
Mooring（）are placed on both banks of the Suez Canal about 200m apart.
A.bollards
B.ballasts
C.bands
D.benefits
答案
参考答案：A
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Mooring（）are placed on both banks of the Suez Canal about 200m apart.
A.bollards
B.ballasts
C.bands
D.benefits
参考答案：A