问题
填空题
Questions 14-18
·Using, the information in the text, complete each sentence 14-18 with an expression from the list below.
·For each sentence (14-18). mark one letter (A-G) on the Answer Sheet.
·Do not mark any letter twice.
- A. time zones
- B. natural light
- C. protection
- D. discomfort
- E. cost
- F. essentials
- G. motion sickness
It’s not true that flu vaccine provides you with for the whole life.
答案
参考答案：C
解析： 文章第一段最后一句提到“流感疫苗的有效期只有4个月。”