单项选择题

Heat exhaustion is a condition caused by ______to sunlight or another heat source which often results in dehydration and salt depletion.

A．a reaction to
B．overexposure
C．a limitation of
D．an absence of
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单项选择题
In today’ s rapidly changing economy, opportunities ______for those who are motivated and dedicated to achieving their career goals.
A．abound
B．refrain
C．transcend
D．uphold
单项选择题
Some authorities trace the jury system to Anglo Saxon or even more ______Germanic times.
A．remote
B．similar
C．austere
D．barbaric
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