单项选择题


A．attain
B．shed
C．retrieve
D．seek
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单项选择题
Which of the following is within the capacity of the artificial nose being developed
A．Performing physical examinations.
B．Locating places which attract terrorists.
C．Detecting drugs and water contamination.
D．Monitoring food processing.
单项选择题
The author's attitude towards Larry Myer's work is __
A．cautious
B．approving
C．suspicious
D．overenthusiastic
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