【多选题】【消耗次数：1】
数据库管理系统由（ ）和（ ）两大部分组成。
①
查询处理器
②
控制器
③
存储管理器
④
运算器
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At the bus stop _____ a soldier and two young people on their way to North Carolina.
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were
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was
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is
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waiting
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competent
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likely
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awkward
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unexpected
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2.I couldn’t understand why he pretended ______ in the bookstore.
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to see me not
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not to see me
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not see me
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to see not me
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In the meantime, the question facing business is whether such research is _____ the costs.
①
worth
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worth of
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worthy
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worthwhile
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7. They hope to_________the source of the infection.
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track down
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look down
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look at
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back down
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was used to dance
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used to dancing
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used to dance
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was used to dancing
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①
to
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along
③
in
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of
【单选题】
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①
stick
②
notice
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attach
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remind
【单选题】
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thrill
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hesitate
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reject
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puzzle