单项选择题

All the parts of these washing machines are ___________ ,so that it is very convenient to get replacement for them.

A．mechanized
B．modernized
C．standardized
D．normalized
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单项选择题
After looking through the students' homework, he ___________ to have the geography class.
A．proceeded
B．processed
C．presided
D．preceded
单项选择题
The union will ___________ the strike now that they have accepted the management's offer.
A．call off
B．call up
C．call out
D．call for
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