单项选择题
After they tested the chemical and biological ______ of the samples we had sent them, they wrote up the report.
A．assets
B．characters
C．abnormities
D．properties
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单项选择题
Martin asked his professor for some comments on his report but it was ______.
A．turned down
B．turned off
C．turned up
D．turned on
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单项选择题
We had a lot of good applicants for the job, but Thomas Taylor ______ from the rest by having a degree in marketing.
A．singled out
B．checked Out
C．stood aside
D．stood ont
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