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  3. 　　Fishing adds only about one percent to the global economy, but on a regional basis it can contribute extremely to human surviv

　　Fishing adds only about one percent to the global economy, but on a regional basis it can contribute extremely to human surviv

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问题 　　Fishing adds only about one percent to the global economy, but on a regional basis it can contribute extremely to human survival. Marine fisheries contribute more to the world’s supply of protein than beef, poultry or any other animal source.
　　Fishing typically does not need land ownership, and because it remains, generally, open to all, it is often the employer of last resort in the developing world—an occupation when there are no other choices. Worldwide, about 200 million people rely on fishing for their livelihoods. Within Southeast Asia alone, over five million people fish full-time. In northern Chile forty percent of the population lives off the ocean. In Newfoundland most employment came from fishing or servicing that industry — until the collapse of the cod fisheries in the early 1990s left tens of thousands of people out of work.
　　Though debates over the conservation of natural resources are often cast as a conflict between jobs and the environment, the restoration of fish populations would in fact boost employment. Michael P. Sissenwine and Andrew A. Rosenberg of the U. S. National Marine Fisheries Service have  estimated that if depleted species were allowed to rebuild to their long-term potential, their sustainable use would add about ＄ 8 billion to the U. S. gross domestic product — and provide about 300 000 jobs. If fish populations were restored and properly managed, about twenty million metric tons could be added to the world’s annual catch. But restoration of ecological balance, fiscal profitability and economic security will require a continual reduction in the capacity of the commercial fishing industry so that wild populations can recover.
　　The necessary reductions in fishing workforce need not come at the expense of jobs. Governments could increase employment and reduce the pressure on fish populations by guiding subsidies away from highly mechanised ships. For each ＄ 1 million of investment, industrial-scale fishing operations require only one to five people, while small-scale fisheries would employ between 60 and 3 000. Industrial fishing itself threatens tens of millions of fishermen working on a small scale by depleting the fish on which they depend for subsistence.  
The animal source which provides the most protein for human being is_______.
选项 A、beef
B、fish
C、pork
D、chicken
答案B
解析 首段点出“Marine fisheries contribute more to the World’s supply of protein than beef，poultry or any other animal source. " 。
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