题目内容

The power supply system adopts the mode of providing _ at voltage and with contack rail (the third rail) receiving electricity.

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The ___ and sleeper are the foundation of the steel track. The sleeper is divided into _ sleeper and ____ sleeper.

The roadbed is divided into roadbed and _ roadbed.

Filling in the blanks with the following words.leadertrendthreatfounderopportunity conceptBreaking Into A New MarketMario Moretti Polegato is the __1_ of Geox footwear. In the early 1990s he created a new footweart 2_: A special membrane(薄层，薄膜) that could be used in shoes to prevent perspiration(出汗). He approached Nike, Adidas, Timberland, the _3 of the footwear market. But nobody was interested. So he decided to go it alone and set up his company with five employees. Today the company is a large international group and is among the world leaders in the casual footwear sector. Mario thinks the company's next _4_will come from the clothing market and he plans to produce a range of clothes incorporationg the same patented(受专利保护的）material. The only 5_ that Geox faces is the same for all fashion businesses: a sudden shift in consumer _6__.

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