题目内容

Filters and low tar tobacco make smoking safer.

A. Right B.Wrong C. Not mentioned

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A) distinguished B) different C) protected D) isolated

“some” in the last sentence of the first paragragh refers to
A some cocoa trees
B some chocolate drinks
C some South American Indians
D some shops

Scientist have to adapt their research to ‘economic needs’ in order to ().

A. impress the public with their achievements
B. pursue knowledge for knowledge’s sake
C. obtain funding from the government
D. translate knowledge into wealth

17……
A on the plane
B at the bank
C at the airport
D at the office
E at the theatre
F at the hotel
G at the customs
H on the bus

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