Science is still largely ignorant________the causes of many kinds of cancer.

分类: 作业答案 • 2022-01-09 18:05:03

问题描述：

Science is still largely ignorant________the causes of many kinds of cancer.
A.about
B.with
C.of
D.to
- -以前么有看到过这个呃.求教

答

be ignorant of/about意为对.无知,to的不知道