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{{B}} Online Cancer Chat with a Safety
Net{{/B}} Cancer Research ,UK has launched an online chat forum for cancer patients to swap(交换)stories and share experiences on how to cope with such a devastating disease. But Cancer Chat is a forum with a difference: it has an information safety net. This means that a Cancer Research UK team will keep a watching brief to ensure that patients are not subjected to rogue (劣等的) "cancer cures" or scientifically unsound information. Anyone can have access to the messages posted on Cancer Chat, but if people wish to post a message, they will need to register. And Rebekah Gibbs, cancer patient and star of TV’s Casualty, has pledged her support for the new project. "I think Cancer Chat is a brilliant idea," she said. "I have w A. It offers lots of information on cancer treatment and clinical trials B. It attracts numerous visitors C. It has won an award D. It is accessible only to British citizens 更多"{{B}}第二篇{{/B}}"的相关试题: [单项选择]第二篇
Mind-reading Machine
A team of researchers in California has developed a way to predict what kinds of objects people are looking at by scanning (扫描) what’s happening in their brains.
When you look at something, your eyes send a signal about that object to your brain. Different regions of the brain process the information your eyes send. Cells in your brain called neurons (神经元) are responsible for this processing.
The fMRI (functional Magnetic Resonance Imaging) (功能性磁振造影) brain scans could generally match electrical activity in the brain to the basic shape of a picture that someone was looking at.
Like cells anywhere else in your body, active neurons use oxygen. Blood brings oxygen to the neurons, and the more active a neuron is, the more oxygen it will consume. The more active a region of the brain, the more active its neurons, and in turn, the more blood will travel to that region. And by using fMRI, scientist
A. The magnetic system in the brain. B. The central part of the heart. C. Oxygen-rich blood. D. Neurons in the brain. [单项选择]{{B}}第二篇{{/B}}
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