2. 考研
  3. Flu shots are given every fall as a precaution against an epidemic the following winter.

Flu shots are given every fall as a precaution against an epidemic the following winter.

admin2010-01-13  49
问题 Flu shots are given every fall as a precaution against an epidemic the following winter.
选项 A、required treatment
B、free service
C、preventive measures
D、new therapy
答案C
解析  画线词precaution：预防措施。其含义等于选项C．preventive measures(预防性措施)。辨义：A．required treatment所要求的治疗；B．free service免费服务； D．new therapy新的疗法。故答案为C。
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