图中所示的是两个全等的五边形，∠β=115°，d=5，指出它们的对应顶点•对应边与对应角，并说出图中标的a，b，c，e，α各字母所表示的值．

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若x，y∈R⁺且2x+y=1，则 $\frac{1}{x}+\frac{1}{y}$ 的最小值（   ）

B

    (Shenzhen, Wednesday, 31 May)—Shenzhen traffic police fined 4,251 private cars 300 yuan each because they used the bus lane (公交车道）during the three-day Dragon Boat Festival holiday. The bus lane on the Luosha Road and Huishen Coastal Expressway（惠深沿海高速）to Dapeng was put into use on Sunday, the first day of the holiday.
    The bus lane only allows buses between 9 a.m. and 9 p.m. during holidays and weekends.
    To make sure traffic on the bus lane moved smoothly, police officers were sent to work along the road
using cameras and drones（无人机）to get information and photos of the vehicles(车辆）that entered the bus lane against the traffic rules.
    Information from police shows the bus lane has reduced the time it takes buses to get to the east of the city. A tourist took a holiday bus to Dapeng at noon from the Luohu Stadium Stop, while his friend drove a private car. The bus arrived at 12:48 p.m. The private car arrived at 2:05 p.m.
    According to police, the bus lane can also be used as the rescue passage for accidents that happen in the tunnels.