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As is well known, the brain performs a very important _______, which controls the nerve system of the body.
A．motionB．a(chǎn)ctionC．functionD．fact
C
句意：眾所周知，大腦起著重要的作用，它控制著人體的神經(jīng)系統(tǒng)。A項(xiàng)移動(dòng)，運(yùn)動(dòng)；B項(xiàng)行動(dòng)，function功能，作用。
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