2. 外语
  3. There is a trend that drugs are more readily available and used by youth at a younger age than ever before. Blood testing is an

There is a trend that drugs are more readily available and used by youth at a younger age than ever before. Blood testing is an

admin2009-04-23  50
问题 There is a trend that drugs are more readily available and used by youth at a younger age than ever before.
Blood testing is another widely accepted method of drug testing.
选项 A、Y
B、N
C、NG
答案C
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