单项选择题

There is no denial that in the tropical area there is a high （） of malari

A. incident
B. incidence
C. accident
D. precedent

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The government ______ the foreign-owned corporations one after another.
A．took over
B．took out
C．took off
D．took on
单项选择题
They gained great influence by ______ themselves to prominent city institutions.
A．detaching
B．assigning
C．dispatching
D．attaching
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