2. 外语
  3. Street food is food that is prepared, sold and eaten on city streets. Street food is an important part of the【C1】______of people

Street food is food that is prepared, sold and eaten on city streets. Street food is an important part of the【C1】______of people

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问题    Street food is food that is prepared, sold and eaten on city streets. Street food is an important part of the【C1】______of people in developing countries. An【C2】______2,500 million people worldwide eat street food. This kind of food is【C3】______in cost, tasty, nutritious and easy to serve, it is designed for the lives of busy people in large cities.
   But buyers must be careful【C4】______health risks. Street food sellers in developing countries often【C5】______the storage, cooking and cooling equipment necessary to【C6】______the formation of dangerous bacteria.【C7】______some conditions, a single bacterium can grow into seventeen-million disease-carrying organisms in just eight hours. The lack of clean【C8】______water and waste removal systems also【C9】______the risk of infection.
   The Food and Agriculture Organization is leading an effort to make street food【C10】______.【C11】______the past fifteen years, it has helped officials【C12】______street food in more than twenty cities worldwide.【C13】______, FAO officials have been working【C14】______the South African government【C15】______such a project. The UN agency produced a food safety teaching【C16】______for public health officials. The guide offers suggestions【C17】______how to prepare food【C18】______. A videotape shows【C19】______producing safe food results in【C20】______business.  
【C19】
选项 A、how
B、what
C、when
D、why
答案A
解析
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大学英语四级

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