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What is an advantage of diesel over steam turbine propulsion? （）
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普通消防站消防员降温背心应配备的数量为（）。
目前的营改增政策中对增值税税率问题是如何规定的？
矿山企业的主要负责人每月带班下井不得少于（）个。
nternational Transport Transport plays an important part in international business because goods produced have to be delivered to the buyers abroad, and the delivery of goods is to be made possible by transport services. Goods are carried by several means of transport on road or rail, by sea or air. And in recent years, combined transport which is a road-sea-rail carriage appeared. With the expansion of international trade, the container service has become popular. The use of containers provides a , highly effective form of transport . by road, rail and sea, Basically , orabout 98% of world trade is carried out by sea transport.Besides transport by sea, road, or rail, nowadays in order to speed up delivery, carriage by air international has also become popular. In recent years,combined transport which is a road-sea-rail carriage appeared.
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