_____scientists have learned a lot about the universe, there is much we still don’ t know.

admin2018-08-01  1

问题 _____scientists have learned a lot about the universe, there is much we still don’ t know.

选项 A、Once
B、Since
C、Though
D、Unless

答案C

解析 句意:尽管科学家对宇宙已经了解了很多,我们不知道的还很多。分析句子可知,句子前后为让步关系,故选C。
转载请注明原文地址:https://kaotiyun.com/show/T99q777K
0

最新回复(0)