How many flows are there in global logistics?（） One。 Two。 Four。 Three。
How long the haul for international deep-sea movement usually? （） Very long。 Ten thousands of miles。 Thousands of miles。 Thousands of kilometers。
Which area is the most commodities shipped in water transport?（） In international deep sea。 In lakes。 In river and canals。 Coastal ocean。
How many tons does the cargo 737 carry? （） 100 tons。 Not clear。 more than 100 tons。 I don’t know。
Where is the most air freight shipped in the passenger aircraft?（） separately。 Not clear。 In the lower part。 Not mention here。
What are transported mainly by water? （）
