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【单选题】
The lungs are important organs, _______ f unction is to take in oxygen and release carbon dioxide.A.
whom
B.
who
C.
whose
D.
of which
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反馈参考答案：
举一反三
【单选题】______ their service, the workers of the hotel are active in learning English.
A.
Improving
B.
To improve
C.
Improve
D.
Having improved
【多选题】对德国科隆,下列说法正确的有P324
A.
德国最古老、历史最悠久的城市
B.
与北京是姐妹城市
C.
汽车、狂欢节和教堂被称为科隆三宝
D.
科隆大教堂有两座哥特式尖塔，是目前世界上最高的双塔教堂
E.
拥有德国最大的航空和铁路枢纽
【单选题】The improvement of earnings may slowdown in the following two quarters because
A.
the improvement depends on the layoffs in 2008.
B.
the positive news only comes from a few firms.
C.
there will be more layoffs in 2009.
D.
many big firms have cut down their earnings.
【单选题】The general function of___ is to formulate, negotiate and implement measures to improve the development process.
A.
UNCTAD
B.
GATT
C.
WTO
D.
FOB
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