王强口语 第二册 Dictation 018(在线收听

  Lesson Eighteen
  听力部分
  Dictation: Please prepare your paper and pen.
  ___________ is always a _____________ for every _____. The ______________ of ____ contamination and ______________of food-borne _______ underscore the ____ for _________ in ______________ of ____. Most ______, ______ and _________________ can be _________by ______ foods to the __________________, then holding them ___________________, or _____, long enough to ____ the toxins. Any ____ of ______-______, _______ or _____---________________ that ____ food-borne ______.

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