英语中 百分之几 后面要加 OF么? 比如光速的百分之1. 是1% the speed of light 还是 1% o

英语中 百分之几 后面要加 OF么? 比如光速的百分之1. 是1% the speed of light 还是 1% o two-tenths of 1 percent 是百分之几, Half of the population谓语是 is 还是are?语法书说人口的几分之几或百分之几谓语要用复数. travel at half the speed of light Speed Of Light 歌词 Physics Speed of Light one of 后面加负数还是单数,比如“其中一个因素”是不是"one of the factor" 英语动词的后面如何接比如说是i saw him went out of the room还是i saw him go o the后面的形容词的第一个读音是元音的,the要不要变音?比如：the average of 39 days.the o The speed of light is the fastest possible speed in universe The speed of light is the fastest possible speed is generall one half of one percent是百分之几?