問題詳情
7. Experiments in genetic engineering have created important __________ to find cures for many cancers.
(A)drawbacks
(B)breakthroughs
(C)accusations
(D)obstacles
參考答案
答案：B
難度：簡單0.715
統計：A(6),B(143),C(20),D(11),E(0)
用户評論
【我愛阿，阿愛我】評論
Experiments （實驗）in genetic engineering（基因工程學） have created important __________ to find cures for many cancers. (A)drawbacks 缺點、障礙(B)breakthroughs 突破(C)accusations 指控、控告(D)obstacles 障礙、妨礙※有錯請幫忙更正，謝謝：）