In 2018, China's total number of civil flight routes reached , including domestic routes and international routes. Among them there are 167 new international routes, involving 105 " " national routes.

If a metric is not specified for routes that are redistributed into OSPF， the default metric that is assigned to the routes is 20， except for redistributed BGP routes. What is the metric that is assigned to redistributed BGP routes？（） A: 0 B: 1 C: 10 D: 200

Packing varies with the transportation routes.

CRE refers to the China’s fast freight trains bound for Europe with 3 major routes, they are_________. A: The western, the middle and the eastern routes B: the western, the middle and the southern routes C: the western, the northern and the eastern routes D: the eastern, the middle and the southern routes

Buses have routes. They ________ and ________ people at different places on the routes. A: take on, get off B: pick up, drop off C: take up; take off D: pick out; drop out

If no metric is specified for the routes being redistributed into IS-IS， what metric value is assigned to the  routes？（） A:  0 B:  1 C:  10 D:  20

Zhang Qian went to the Western Regions on diplomatic missions twice by different routes.

The Belt and Road initiative will not be a solo for China, but a chorus of all countries along the routes. ( )

The Silk Road only refers to the overland routes

There are many routes to the different careers within the construction ( )industry.