【单选题】【消耗次数：1】
下列哪项不是常用的网页爬虫系统（ ）。
①
ApacheNutch
②
word
③
Crawler4j
④
Scrapy
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相关题目
【单选题】
4、下列哪项不是弥漫性毒性甲状腺肿的特点
①
甲状腺弥漫性肿大，质地坚韧，状如橡皮结节状
②
滤泡上皮增生呈高柱状或乳头状
③
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⑤
血管充血，滤泡内有吸收空泡
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Hurrying to the classroom, no one was there.
②
Hurrying to the classroom, she saw nobody there.
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Ill visit you whenever I will get the chance. Identify the mistake in the sentence.
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unless
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There were some chairs left over[] everyone had sat down.
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when
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until
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These candidates have vague notions of serving the company, [] they have never taken trouble to find out the actual tasks they will be required to do.
①
or
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and
③
but
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Which sentence is correct?
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On entering the classroom, the students stood up and said, Good morning!
②
On entering the classroom, the teacher was greeted by the students with Good morning!