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题目内容
The (i)______ current-generation solar cells are (ii)______: although experimental cells have reached efficiencies greater than 40 percent, most commercially available cells in the early part of the twenty-first century still struggle to get past about 20 percent.
- Blank(i)
- attractions of 吸引力
- limitations of 缺陷
- improvements in 改进
- Blank(ii)
- clear 清楚
- unmatched 无与伦比的
- misunderstood 误解
limitations of 缺陷 , clear 清楚 显示答案
以上解析由 考满分老师提供。
