What is the meaning of integration? （） To link some separate factors as a whole chain。 United。 To put together。 Mixture。
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。
How many categories are there in water transport?（） 2。 3。 4。 Not available in the paragraph。
How many tons does the cargo 737 carry? （） 100 tons。 Not clear。 more than 100 tons。 I don’t know。
What is the meaning “speed is not of primary importance”? （）
