单选题：It can be inferred from the passage that lighthouses in the

题目分类：理工类
题目类型：单选题
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题目内容：

It can be inferred from the passage that lighthouses in the Northeast did NOT need high towers because A．ships there had high masts
B．coastal waters were safe
C．the coast was straight and unobstructed
D．the lighthouses were built on high places

参考答案：

答案解析：

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分类：理工类题型：单选题

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回答（49）题

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The short trip does not bother passengers who want a good view because _________

分类：理工类题型：单选题