单项选择题

Unlike science, progress in technology must be measured in terms of the human factor. Technology must be our slave and ______.

A．not the reverse
B．not the version
C．not the same
D．not the prejudice
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单项选择题
The old man was seriously ill for a time, but with careful nursing he managed to ______.
A．pull off
B．pull through
C．get off
D．get through
单项选择题
To the waitress' relief, the plate was left ______ after being dropped onto the floor.
A．unchanged
B．intact
C．unharmful
D．complete
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