問題詳情
三、語文填空 Passage 1 Some scientists are busy 21 genes of animals and plants to create new varieties that are22 to insects and to herbicides. A new, golden-colored rice, high in Vitamin A is also a productof genetic alteration. 23 these “biotech” varieties seem to offer clear advantages, criticscontinue to reveal the risks of genetic alteration of foods.
【題組】21.
(A) alter
(B) alteration
(C) altering
(D) altered
參考答案
答案：C
難度：適中0.5
統計：A(1),B(0),C(1),D(0),E(0)