单选题：What is the main topic of the passage?

题目内容：
What is the main topic of the passage? A．What was learned from Kohoutek
B．What was disappointing about Kohoutek
C．Where Kohoutek was spotted
D．How Kohoutek was tracked
参考答案：
答案解析：

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分类：公共英语四级  题型：单选题
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The best title for the text probably is_________．

The best title for the text probably is_________． A．Queuing in Japan B．A New Ma

分类：公共英语四级  题型：单选题
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分类：公共英语四级  题型：单选题
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The instant Davison entered the flat，he turned on the light

The instant Davison entered the flat，he turned on the light because——.A．he wond

分类：公共英语四级  题型：单选题
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根据以下资料，回答题： Davison knelt down close to the bottom of the b

根据以下资料，回答题： Davison knelt down close to the bottom of the basement stairs．He

分类：公共英语四级  题型：单选题
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