单项选择题

They have developed techniques: which are ______ to those used in most factories.

A. simpler
B. better
C. superior
D. greater
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单项选择题
We’ve ______ sugar. Ask Mary to lend us some.
A. run away with
B. run down
C. run out of
D. run off
单项选择题
At the beginning of this term, our English teacher ______ a list of books for us to read.
A. turned out
B. made out
C. handed in
D. passed on
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