单项选择题

The phrase"delves into" in Para.2 can be replat.'ed by.

A. refrains from
B. holds back
C. digs into
D. worries about

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单项选择题

Which of thefollowing statement is not the problem of travel medicine？

A. Traditionaldisciplines are not enough for travel medicine.
B. Travel medicinehas been colonized by commercial interests.
C. The statisticsabout travellers are hard to obtain.
D. People spend muchmoney on poor travel advice.

单项选择题

What does theauthor mean by saying "..., but it is notoriously difficult to gel anybodypay out money forkeeping people healthy."？

A. People don't payattention to their health.
B. Few people arewilling to support travel medicine.
C. Most travellersfirmly believe that they will be safe.
D. Health comes lastcompared with others.