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somethingmustbedonetothebirdflu.Somethingmustbedonetothebirdflu.A)turnoffB)takeoffC)putoffD)keepoff

题目详情
something must be done to ______ the bird flu.
Something must be done to ______ the bird flu.
A) turn off B) take off C) put off D) keep off
▼优质解答
答案和解析
选d
keep off 避开;防止;挡住
防止禽流感
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