我国自行研制的“神州”六号载人飞船于2005年10月12日9时顺利发射成功，它在太空绕地球转了77圈．已知绕地球5圈大约需要7.5小时，那么神州“六号”载人飞船在太空大约运行了多长时间？（用比例知识解答）．
直接写出得数．×40== 25×==== 1﹣50%=÷==×=
直接写得数．×=÷2=×14= 10×=×2=×=÷=÷=
直接写出得数×10=+= 52×= 9÷=÷= 11﹣= 0÷×=﹣+= 1÷9×=
直接写出得数．=========================
直接填得数×=×= 16×=÷= 1÷=÷= 9÷=÷33= 1﹣25%= 75%+0.25=÷=﹣=
×40=
= 25×
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+
= 1÷9×
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×
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= 16×
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= 1÷
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= 9÷
=
÷33= 1﹣25%= 75%+0.25=
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