题目内容：
根据下面材料，回答题：Close your eyes for a minute and imagine what life would be like if you had a hundred dollars less. Also imagine what it would be like spending the rest of your life with your eyes closed. Imagine having to read this page, not with your eyes but with your fingertips.
With existing medical knowledge and skills, two thirds of the world's 42 million blind should no theve to suffer. Unfortunately, rich countries posses most of this knowledge, while developing countries do not.
ORBIS is an international non-profit organization which operates the world's only flying teaching eye hospital. ORBIS intends to help fight blindness worldwide. Inside a DC-8 aircraft, there is a fully-equipped teaching hospital with television studio and classroom. Doctors are taught the latest techniques of bringing sight back to people there. Project ORBIS also aims at promoting peaceful cooperation(合作) among countries.
ORBIS tries to help developing countries by providing training during three-week medical pro-grams. ORBIS has taught sight-saving techniques to over 35,000 doctors and nurses, who continue to cure tens of thousands of blind people every year. ORBIS has conducted 17 plane programs in China so far. For the seven to ten million blind in China ORBIS is planning to do more for them. At the moment an ORBIS is working on a long-term plan to develop a training center and to provide eye car eservice to Shanxi Province. ORBIS needs your help to continue their work and free people from blindness.
For just $ 38,you can help one person see ; for $ 380 you can bring sight to 10 people; $1,300 helps teach a doctor new skills; and for $13,000 you can provide a training program me for a group of doctors who can make thousands of blind people see again. Your money can open their eyes to the world. Please help ORBIS improve the quality of life for so many people less fortunate than ourselves.
The first paragraph is intended to__________. A．introduce a new way of reading
B．advise the public to lead a simple life
C．direct the public's attention to the blind
D．encourage the public to use imagination
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