Some scientists think there are 2，000 million flashes of lightning per year. A. in shortB

发布时间：2020-08-16 23:45:48

Some scientists think there are      2，000 million flashes of lightning per year.
A. in short
B. on average
C. as usual
D. in total

网友回答

A. in short
(答案→)B. on average
C. as usual
D. in total
解析：短语辨析。A简而言之；B平均；C和平时一样；D总共；句意:一些科学家认为每年平均有2千多闪电。故B正确。
以上问题属网友观点，不代表本站立场，仅供参考！