[[求助与讨论]] 度量单位是否加"S"有无规律?

发表于 2007-7-17 16:11:26 | 显示全部楼层 |阅读模式

a 12-kg fish
The scratch on the bumper is 7.5 cm long.
You may grow up to 3 inches in height
Scientists have accelerated electrons up to an energy of 1 GeV
in a space of only 3 centimeters.

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[[求助与讨论]] 度量单位是否加&quot;S&quot;有无规律?

[[求助与讨论]] 度量单位是否加"S"有无规律?