【单选题】【消耗次数：1】
There [] five trees and a well behind her house.
①
is
②
are
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相关题目
【单选题】
The airport is five miles ____ my house.
①
away from
②
far from
③
far away from
④
far from away
【单选题】
At the end of The Fall of the House of Usher, the lady Madeline and her brother ______.
①
recover from their illness
②
fall dead together
③
flee from the decaying house
④
start a new life
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Our new house is very ____ for me as I can get to the office in five minutes.
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adaptable
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convenient
③
available
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comfortable
【单选题】
Helen believes if a man robs her of five dollars it is the same as if he _____ a hundred.
①
takes
②
will take
③
took
④
has taken
【单选题】
When she saw the clouds, she went back to the house to
____ her umbrella.
①
bring
②
fetch
③
take
④
carry
【单选题】
— Its very windy and dusty in Beijing .
—Well, more trees______ every year to stop the wind and sand.
①
should plant
②
should planted
③
can planted
④
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【单选题】
Last month, the little girl _______ well enough by the neighbors while her parents were volunteering.
①
is cared for
②
was cared for
③
will be cared for
④
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【单选题】
The fact ________ that we are behind the other classes.
①
seems to be
②
must be
③
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【单选题】
The fact ________ that we are behind the other classes.
①
seems to be
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③
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talk
随机题目
【单选题】
随机选择5所幼儿园小班儿童进行某疫苗的预防效果观察，随访3年结果表明90%的免疫接种者未发生该病，由此研究者认为
①
该疫苗预防效果欠佳，仍有10%儿童生病
②
不能下结论，因为3年观察时间不够
③
该疫苗预防有效，因可保护90%儿童不生病
④
不能下结论，因为未设对照组
【简答题】
简述临床试验和队列研究的异同点。
【简答题】
母乳喂养的优点。