问题
单项选择题
This system is only applicable（）those ships which are anchored at the roadstead waiting for entry.
A.to
B.for
C.with
D.on
答案
参考答案：A
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This system is only applicable（）those ships which are anchored at the roadstead waiting for entry.
A.to
B.for
C.with
D.on
参考答案：A