Airports can be classified into the following types:
Airports can be classified into the following types:
Airports are not the mostsophisticated of security sites but a place of education and fun.
Airports are not the mostsophisticated of security sites but a place of education and fun.
中国大学MOOC: Airports can be classified into the following types: _______.
中国大学MOOC: Airports can be classified into the following types: _______.
Search flights from nearby airports is a way to find cheap flights.
Search flights from nearby airports is a way to find cheap flights.
The blizzard moved south, turning into an icy rain that ____(瘫痪)the airports for three days.
The blizzard moved south, turning into an icy rain that ____(瘫痪)the airports for three days.
The clearances will allow ATC to ________ the arrival of aircraft at major airports, which increases airport capacity.
The clearances will allow ATC to ________ the arrival of aircraft at major airports, which increases airport capacity.
At many international airports, passengers can buy _______ free goods such as perfume, cosmetics, liquor and souvenirs.
At many international airports, passengers can buy _______ free goods such as perfume, cosmetics, liquor and souvenirs.
When winters are cold enough, the Dutch go skating on ______. A: avenues B: Canals C: airports D: highways
When winters are cold enough, the Dutch go skating on ______. A: avenues B: Canals C: airports D: highways
据国际机场协会（ACI：Airports Council I...协会规定北京首都机场的机场代码简称为 。
据国际机场协会（ACI：Airports Council I...协会规定北京首都机场的机场代码简称为 。
中国大学MOOC: Airports are major transport facilities, which are used for the landing, taking off, parking, __________, and repairing of aircraft.
中国大学MOOC: Airports are major transport facilities, which are used for the landing, taking off, parking, __________, and repairing of aircraft.