有些公共卫生官员本身就是流行病学家。他们利用先进的计算机和数学模型来追踪传染性疾病,发现新型病种及卫生趋势。 A: Manypublichealthofficialsareepidemiologists,whousemathmethodstoidentifynewdiseasesandhealthtrends B: Somepublichealthofficialsareepidemiologists,whousesophisticatedcomputerandmathematicalmodelstotracktheincidenceofcommunicablediseasesandtoidentifynewdiseasesandhealthtrends.
有些公共卫生官员本身就是流行病学家。他们利用先进的计算机和数学模型来追踪传染性疾病,发现新型病种及卫生趋势。 A: Manypublichealthofficialsareepidemiologists,whousemathmethodstoidentifynewdiseasesandhealthtrends B: Somepublichealthofficialsareepidemiologists,whousesophisticatedcomputerandmathematicalmodelstotracktheincidenceofcommunicablediseasesandtoidentifynewdiseasesandhealthtrends.
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