問題詳情
12. ( ) The neutral mutation rate is known ________ widely along human chromosomes, ________ to mutational hot and coldregions.
(A) to be varying； to lead
(B) varying； led
(C) to have varied； being led
(D) to vary； leading
參考答案
答案：D
難度：簡單0.733
書單：沒有書單，新增
用户評論
【用戶】FC2064
【年級】高三下
【評論內容】be known to V / for N逗號後+ Ving (, leading)