31. Nasal sprays are liquid medicines you spray into your nose to help relieve ________.
(A) cholera
(B) congestion
(C) steroid
(D) suffocation
(E) hepatitis
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統計: A(0), B(19), C(2), D(13), E(1) #3081451
統計: A(0), B(19), C(2), D(13), E(1) #3081451