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A. 10 percent to 25 percent for the proportion of workers who use drugs occasionally on the job B. determine exactly when simpl
A. 10 percent to 25 percent for the proportion of workers who use drugs occasionally on the job B. determine exactly when simpl
admin
2011-01-06
58
问题
A. 10 percent to 25 percent for the proportion of workers who use drugs occasionally on the job
B. determine exactly when simple drug use becomes abuse
C. the 1920s until the 1960s
D. the 1960s until the 1970s
E. signals passing through the nervous system
Drugs that speed up ______.
选项
答案
E
解析
答案相关句是第二段第二句话Drugs that speed up signals passing through the nervous system. which is made up of the brain and spinal cord,and produce alertness and arousal and,in higher doses,excitability,and inhibit fatigue and sleep,are called stimulants.
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本试题收录于:
职称英语卫生类C级题库职称英语分类
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职称英语卫生类C级
职称英语
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