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【单选题】
血浆白蛋白的主要生理功用是A.
具有很强结合补体和抗细菌功能
B.
维持血浆胶体渗透压
C.
白蛋白分子中有识别和结合抗原的主要部位
D.
血浆蛋白电泳时,白蛋白泳动速度最慢
E.
白蛋白可运输铁、铜等金属离子
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举一反三
【单选题】Arthur died because ______ .
A.
his sister couldn't heal his mortal wound
B.
his sister refused to cure him
C.
he didn' t want to live
D.
he lost his Excalibur
【单选题】A) He hasn't eaten well recently. B) He's been helping his sister a lot. C) He can't stop searching for work yet. D) He's been working on his paper constantly.
A.
a
B.
b
C.
c
D.
d
【单选题】Mr．Hill __.
A.
hardly sees his sister
B.
sees his sister only at Christmas time
C.
sees his sister on Jack's birthday
D.
always sees his sister
【单选题】Tim went to work on the farm last week, and__________.
A.
his sister did so
B.
so his sister did
C.
did his sister so
D.
so did his sister
【单选题】What do we know about Sam?
A.
His sister will leave for New York.
B.
His sister will leave for Los Angeles.
C.
He will leave New York.
【单选题】출산율의 하락과 평균 수명의 연장으로 인해 노인 인구는 증가하고 노동 인구는 감소하고 있다 . 이와 같은 고령화의 문제는 증가된 노인 인구가 개인과 국가의 부담이 된다는 것이다 . 이를 해결하기 위해서는 오랜 기간 동안 국가와 개인이 함께 노력해야 한다 . 국가가 해야 할 가장 중요한 일은 지속적으로 노인들에게 고용 기회를 제공하는 것이다 . 또한 선진 국...
A.
개인의 복지 향상을 위해 연금 혜택을 확대하는 것이 좋다
B.
국가의 노력만으로 고령화 문제를 해결하는 것은 불가능하다
C.
개인은 고용 상태를 유지함으로써 꾸준하게 소득을 올려야 한다
D.
국가는 육아 시설 확충 등 출산율을 증가시키는 정책을 시행해야 한다
【单选题】His sister a teacher for 5 years.
A.
has married
B.
has married with
C.
has been married to
D.
has got married
【单选题】Arthur died because ______.
A.
his sister couldn't heal his mortal wound
B.
his sister refused to cure him
C.
he didn't want to live any longer
D.
he lost his Excalibur
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