阿摩線上測驗
6. Additionally, scientists are still monitoring how approved vaccines respond to the COVID-19 _____ that
have begun cropping up in the United Kingdom, South Africa and elsewhere.
(A) validity
(B) victory
(C) verification
(D) variants
答案：登入後查看
統計： A(75), B(9), C(71), D(142), E(0) #2752116
統計： A(75), B(9), C(71), D(142), E(0) #2752116
詳解 (共 3 筆)
bec
#4992335
此外，科學家們仍在監測批准的疫苗如何應對在英國，南非和其他地方已經開始出現這種情况的Covid-19變體。（a）有效性（b）勝利（c）驗證（d）變體
cropping up
- v.突然發生；出現
6
1
