单项选择题

In this passage, the author is mainly discussing the function of （）

A．the human brain
B．glands and systems in the body
C．the cortex of the adrenal gland
D．the medulla of the adrenal gland

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单项选择题
Bond realized that he was being followed by means of （）

A．his common sense
B．his sense of humour
C．his sight
D．his sixth sense
填空题
A. ought B. drought C. thought D. bought
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