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【单选题】
蛋白质组成的基本单位是A.
肽
B.
水
C.
氨基酸
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【单选题】The WTO can't be called _____ 'world' organization without ____ world’s largest nation-Russia．
A.
the; a
B.
a; a
C.
the; the
D.
a; the
【简答题】中国著名的三大特产是指瓷器、茶叶和__________
【单选题】听力原文：It is getting much easier to travel nowadays, but increasingly harder to get away from people, and that is perhaps the most difficult thing for holiday makers. According to the speaker, the most ...
A.
traveling from place to place.
B.
keeping away from crowds.
C.
making holiday plans.
D.
finding a place with many people.
【单选题】Signnatel Inc,______ world's largest maker of controller chips for MP3 players, is set toestablish _______ new R & D centre in Hong Kong and open two sales officeson China's mainland.
A.
the a
B.
the the
C.
a the
D.
a a
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