問題詳情
3. Decades ago, in vitro fertilization was a _____ technology but now it’s an ordinary type oftreatment for infertility issues.
(A) cutting-board
(B) cutting-edge
(C) cutting-down
(D) cutting-up
參考答案
答案：B
難度：計算中-1
書單：沒有書單，新增
用户評論
【栗子】評論
幾十年前，體外受精是一種_____★★，...
【炸蝦】評論
cutting board - 砧板cut up搞惡作劇；胡鬧；故意出洋相There are a couple of kids who are always cutting up in class.有一兩個孩子總是喜歡在課堂上惡作劇。cut down減少，削減，縮減