立交桥的坡比为1:5,当汽车从桥头E向上行驶到桥当中F时,F到地面的垂直距离OF是3米,此时OE=______米.
∵tanα=15=OFOE,OF=3米.
∴OE=15米.
---Poor Tom! He will have to work all the next month.
---Luckily, the basketball games are held.
A.except
B.except that
C.except when
D.except for
海龙燃油宝分为()两种。