Henry Manley had no idea at all why George Strong wanted to see him.
A、True
B、False
C、Not Given
In the end, Henry Manley had a good idea to solve the problem.
A、True
B、False
C、Not Given
Task 221. In most cases of cloud-to-ground lightning, the ground'ssurface__________22. One form of lightning that is ball lightning. __________23. Cloud lightning looks like a ribbon when its lighting channel__________24. Although not fully understanding processes of lightning, man__________25. Lightening can__________A. occurs most infrequentlyB. is shifted sideways by strong windsC. strike twice or more in the same spotD. is equipped with a good knowledge of various forms oflightningE. is estimated at 20 million a yearF. is positively charged