单项选择题

Anxiety is believed to ______ diabetes by raising levels of the stress hormone cortisol, which regulates insulin and blood-sugar levels.

A．impede
B．exacerbate
C．inherit
D．facilitate
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单项选择题
There is little reason to believe that the United States will ______ from its stated goal of regime change in Iraq.
A．back down
B．blow off
C．pop up
D．step up
单项选择题
A Monitor TIPP poll last month found that young people and seniors held similar views when asked to ______ the importance of US military action to remove Saddam Hussein from power in the next months.
A．advocate
B．foresee
C．supervise
D．gauge
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