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初中英语单词填空、数学填空!
1、三角形ABC,BC=a,角A=30度,则三角形的外接圆半径是_____
2、—Do you know women are half the s_____ of the world?
—Of course.And I think they might be more important than men in some way.
人气:264 ℃ 时间:2020-01-12 02:22:40
解答
1.a BC/sinA=2R 所以R=a
2.sky 你听说过女人是半边天吗?
当然,我认为有时侯女人要比男人重要.
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