Last mile和First mile的含义是什么？

[填空题] last mile和first mile都是对（）的称呼，表示（）和（）之间的接入部分。

[单选题]In mile的实际长度（）。A .在赤道附近最短B .在纬度45°附近最短C .在两极附近最短D .固定不变

[单选题]At 0230 on 13 August，you are at mile 610.5 AHP when you see about a mile ahead lights on the water near the left bank. What might you see when you come abreast of these lights? （）A . Privately maintained buoys at a yacht clubB . Government buoys mark

[单选题]15MILE/Hr≈（）KM/Hr。A . 20B . 10C . 15D . 24

[单选题]1海里（n mile）等于（）。A . 1kmB . 2kmC . 1500mD . 1852m

[多选题] “fist mile”可理解为（）A .用户端到局端之间的接入部分B .用户端到局端之间的距离为一公里C .对接入网的形象称呼D .专指数字用户线部分

[单选题]Mile，s手术，人工肛门的位置：（）。A . 左髂前上棘与脐连线中外1∕3处B . 左髂前上棘与脐连线中外2∕3处C . 左髂前上棘向内2cm处D . 左髂前上棘与脐连线中点

[单选题]As you approach mile 427.6 AHP，you see on the right side a white buoy with orange bands and diamond. This buoy marks（）.A . a cable crossingB . a sunken bargeC . a submerged discharge pipeD . the end of a wharf

[单选题]As you approach mile 659.4 AHP，you see on the right descending bank a flashing green light. This light marks（）.A . a lock that is openB . a sunken bargeC . a dolphin，water intake and dischargeD . the end of a wharf

[单选题]Our house is about a mile from the railway station and there are not many h