60. With little natural immunity and ______ vaccination rates among the vulnerable, moving
away from a stringent quarantine policy could lead to many challenges.
(A) viable
(B) austere
(C) suboptimal
(D) pharmaceutical
詳解 (共 4 筆)
未解鎖
austere = severeviab...
未解鎖
由於弱勢群體的天然免疫力和______疫...
未解鎖
60. With little nat...
未解鎖
With little natural ...
阿摩線上測驗
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