利用百度搜索有关“中医养生”的PDF格式的文档，下列搜索语法正确的是______。
A. 中医养生.pdf
B. 中医养生filetype:PDF
C. 中医养生Adobe Acrobat PDF
D. 中医养生[PDF]
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Questions 16 to 18 are based on the passage you have just heard.
A. It is second-hand information and useless.
B. It is gathered from other sources rather than from its inhabitants.
C. It is from the arguments about the country.
D. It is different from what one had before the travel.
Questions 19 to 22 are based on the passage you have just heard.
A. More muscles than average people.
B. A strong will.
C. Strength, fitness and endurance.
D. A strong heart.
Questions 12 to 15 are based on the conversation you have just heard.
A. Steel manufacturing.
B. Coal mining.
C. Textiles.
D. Automobile industry.
Questions 16 to 18 are based on the passage you have just heard.
A. What a big difference its people show.
B. How to live in another way.
C. What the country and its people are really like.
D. How is the culture formed.
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