单选题A new task facing biological security is to prevent _____ diseases and misuse of deadly agents.AethnicBessentialCepidemicDexterior
单选题
A new task facing biological security is to prevent _____ diseases and misuse of deadly agents.
A
ethnic
B
essential
C
epidemic
D
exterior
参考解析
解析：
句意：生物安全面临的新任务是预防传染病和致命制剂的滥用。ethnic种族的。essential基本的，必要的。epidemic传染的。exterior外部的。
句意：生物安全面临的新任务是预防传染病和致命制剂的滥用。ethnic种族的。essential基本的，必要的。epidemic传染的。exterior外部的。
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