【題組】48. The word "both" in line 11 refers to(A) Hazen and Brown(B) penicillin and streptom
問題詳情
【題組】48. The word "both" in line 11 refers to (A) Hazen and Brown (B) penicillin and streptomycin (C) the Department of Health laboratories at Albany and New York (D) double effect