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There is a trend that drugs are more readily available and used by youth at a younger age than ever before. Using the RIAH tech
There is a trend that drugs are more readily available and used by youth at a younger age than ever before. Using the RIAH tech
admin
2009-04-23
55
问题
There is a trend that drugs are more readily available and used by youth at a younger age than ever before.
Using the RIAH technique, it can be confirmed whether a person have used illegal drugs during the past four months.
选项
A、Y
B、N
C、NG
答案
B
解析
在第十二段有这样一段话:Using a technique called radioimmunoassay of hair(RIAH),the company can confirm if illegal drugs marijuana,cocaine,opiates(heroin),methamphetamine,or PCP—have been used during the past three months.这段话告诉我们所给的论述是错误的。
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0
大学英语四级
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