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题型：单选题题类：常考题难易度：普通

A means a careful study, especially in order to find some new facts or information.

A . deal B . research C . class

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【解析】

组卷次数：16次 +选题

举一反三

–What do you think of this ________?
–I love it. I learned a lot about Steve Jobs after reading it.

-- Look! So many colorful bicycles in two lines over there.

-- They're for public. This ______ of green smart traffic is everywhere in Xiangyang city.

A/An _________ is someone who draws or paints pictures or creates sculptures as a job or a hobby.

I've got a toothache. I'm going to the __________.

She accepted his{#blank#}1{#/blank#}(invite) to join him for lunch.

— How's the injured man?

— The doctor has performed a(n) ______________ on him and he's fine now,

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