How did researchers find functions of the brain parts when scanning techniques were uncommon？
A. They measured temperatures of different areas of the scalp.
B. They used drugs to control different parts of the brain.
C. They studied patients who had brain damage.
D. They studied other great apes to make guesses.
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What do we know about the brain scanning technology according to the passage？
A. EEG is a direct way, and fMRI, MRI, CT and DTI are indirect.
B. EEG and fMRI are direct ways, and MRI, CT, and DTI are indirect.
C. EEG, fMRI, MRI, CT and DTI are all indirect ways.
D. EEG, fMRI, MRI, CT and DTI are all direct ways.
How do some parents protect their children from the harm of smoking？
A. They smoke only when their children are not present.
B. They try to keep the smoke away from the children.
C. They choose to smoke second-hand cigarettes.
D. They buy masks specially designed for the children.
A．Work and worries.B．A simpler lifestyle.C．Wilderness and animals.D．Canoes and camp gr
A. Work and worries.
B. A simpler lifestyle.
C. Wilderness and animals.
D. Canoes and camp grounds.
How do the neurons in our brains communicate with each other？
A. They communicate by linking to the basal ganglia.
B. They work in the synapse to pass messages.
C. They spread their influence like a radio signal.
D. They release and capture neurochemicals.
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