Although the causes of cancer , we do not yet have any practical way to prevent it.
A. are being uncovered
B. have been uncovering
C. are uncovering
D. have uncovered
Although the causes of cancer, we do not yet have any practical way to prevent it.A. are b
答案:2 悬赏:20 手机版
解决时间 2021-03-29 02:17
- 提问者网友：最爱你的唇
- 2021-03-28 07:05
最佳答案
- 五星知识达人网友：人類模型
- 2020-11-26 13:24
(答案→)A. are being uncoveredB. have been uncoveringC. are uncoveringD. have uncovered解析：句意：虽然癌症的原因正在被解开，但是我们何不用一些实际可行的方案去防止呢？这里the causes of cancer与uncover之间是被动关系，故排除BCD,故选A。
全部回答
- 1楼网友：掌灯师
- 2019-09-16 12:05
感谢回答，我学习了
我要举报
如以上回答内容为低俗、色情、不良、暴力、侵权、涉及违法等信息，可以点下面链接进行举报！
点此我要举报以上问答信息
大家都在看
推荐资讯