阿摩線上測驗
3. Health experts have suggested new _____ to reduce the spread of the virus.
(A) restrictions
(B) speculations
(C) strains
(D) infections
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統計： A(1), B(1), C(2), D(0), E(0) #3368711
統計： A(1), B(1), C(2), D(0), E(0) #3368711
