49. The author uses “booster shots” as an example of ______.
(A) a scientifically approved medicine to eliminate chickenpox in the elderly
(B) a preferred solution to immunity failure and fever treatment
(C) a way to increase the effectiveness of the chickenpox vaccine
(D) a strategy for parents to avoid vaccinating their child altogether

答案:登入後查看
統計: A(7), B(4), C(80), D(9), E(0) #3432210

詳解 (共 1 筆)

#6396701
【題組】49. The author ...
(共 261 字,隱藏中)
前往觀看
4
0