单项选择题

Mosquitoes are only means of ______ of malari

A． transferenceB. transformationC. transitionD. transmission
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单项选择题
He was trained as a doctor but ______ to diplomacy.
A．converted
B．reverted
C．diverted
D．averted
单项选择题
Don't rest on your laurels; ______ your success and start looking for new markets now.
A．add up
B．follow up
C．work up
D．count up
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