单项选择题

All parts of this machine are ______ , so that it is very simple to get replacements for them.

A．specialized
B．standardized
C．minimized
D．modernized
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单项选择题
English primrose need to be grown in rich damp soil with plenty of ______ or compost worked into it.
A．marijuana
B．manure
C．malt
D．mallet
单项选择题
They have been arrested as suspected drug ______.
A．abortion
B．vector
C．uranium
D．traffickers
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