Which of the following is the possible risk in using nano-materials mentioned in the passage?
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A To make beauty products and dirt-resistant clothing. B To produce better and lighter building materials. C To help more accurately diagnose diseases. D To help more effectively treat diseases.
3 .How can quantum dots be used to confirm diseases?
A By traditionally looking at a person’s blood under a microscope. B By letting a person take some kind of medicine. C By lighting up in the presence of a targeted molecule. D By subjecting a person to an X-ray examination.
4 .How can nanotechnology be used to make a drug more effective?
A By making a drug target the focus of a disease. B By changing the structure of the body cells. C By lowering the side effects caused by a drug. D By letting a patient take a dose as large as possible.
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A China B Brazil C Iran D India
7 .What a new tendency in lung cancer is concluded by the researchers?
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8 .Which of the following diseases is the most common among the local residents in Shanghai?
A Heart disease. B Breast cancer. C Infectious diseases. D Lung cancer.
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