单选题
It can be inferred from the article that the majorty of tropical forests______.
A、
contain a few valuable plants which possess curative properties
B、
are of little interest to scientists involved in medical research
C、
could be the source of a cum for life threatening diseases and various health problems
D、
as a region produce only one percent of modem medicines
【正确答案】
C
【答案解析】
第二段提到Fewer than one percent...a wealth of important plants into our everyday lives，所以不难推测，这些热带雨林可能是治疗致命的疾病和各种健康问题的良药。
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