Doctorsaroundtheworldareprepari

发布时间:2020-07-27 20:07:14

Doctors around the world are preparing ________ a possible outbreak of bird flu because few current vaccines will guard against.A.againstB.withC.beyondD.regardless of

网友回答

A解析句意为“全世界的医生都在防备禽流感的爆发,因为禽流感还几乎没有疫苗进行预防”。prepare against是固定短语,意为“防备”。
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