![](https://cos-cdn.shuashuati.com/pipixue-web/2020-1231-2005-12/ti_inject-812ce.png)
What is exciting about the new fuel cells? 查看材料
A.
Their limitless power generation capacity is amazing.
B.
Their limited power generation capacity is a good beginning.
C.
Their limited power generation capacity is the result of great efforts.
D.
Their limitless power generation capacity is a major accomplishment.