  ɱǱϷ˵

    Ϸ㽫һǱͧ˵ĺ
    ȻÿֻһˣǵĻǿ

һ˵
    1QWEDCXZA˸ʹǱͧӦ˶
    2Sֹͣ˶
    3ҳϸǱʱã
    4""Կյǳˮ""ף
    5Pͣ/

зλ˵
    1ըԹҷԿյʹüƵըȷȼߣ
    2ǱͧԹҷףʹðףԶ㿪
    3𽢣޹ܶʹó̻ˮըйǣ
    4Ժף٣ҷǱͧĻҰ벿ʱ䡣


    1ֱ"L"С򣬻һ

ġ
    1ĻС160*80
    2ҷ˶ٶȣ1ϸ/Ǳٶȣ3̣63ƫƣ21ٶȣ3
    3з
    ըٶȣͶǰ2Ͷ1.5
    Ǳͧ˶ٶȣ1޿ϸ/Ǳٶȣ3
    𽢣˶ٶȣ1ըٶȣ2
    Ժף˶ٶȣ4ƫٶȣ2
    4˫ƣ3෢ö

塢Ʒַ
    Ϸʱ*100
    Ϸ󣺻*ֵ*ݻֵ/20
    ʣ50%ݻʣ60%30=30*50*60/20=4500

ʾ
    1Ըʱһĵطըʱף֮Ǳ𽢵Ĺǣ˷ϰҽһλᣬҪӴ
    2ԸըһҪͶǰ䣬......
    3ϷѶȣһİɣ
