单项选择题
What do you suppose the author will go on to discuss in the following paragraphs（）
A．the brain system.
B．functions of kidneys
C．other human organs related to the kidneys
D．reactions of the body to stress and danger
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相关考题
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单项选择题
Which of the following is NOT true（）
A．The adrenal gland is located on top of the kidney.
B．Each kidney is composed of two adrenal glands.
C．The medulla is inside the cortex.
D．The cortex and the medulla have different functions. -
单项选择题
What could be said about the adrenalin （）
A．It is secreted by the kidneys into the bloodstream.
B．It is hormone that prepares the body for emergencies.
C．It is the only useful hormone produced in the body.
D．It is essential to sustain lif -
单项选择题
It is （）that mainly helps you respond to a dangerous or stressful situation（）
A．a signal sent by your brain
B．the special function of the adrenal gland
C．all stimulated parts of your body
D．All of these
