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8. Teenagers are often priced out of the labor market by the government-mandated minimum-wage level because employers cannot afford to pay that much for extra help. Therefore, if Congress institutes a subminimum wage, a new lower legal wage for teenagers, the teenage unemployment rate, which has been rising since 1960, will no longer increase.
Which of the following, if true, would most weaken the argument above?
(A) Since 1960 the teenage unemployment rate has risen when the minimum wage has risen.
(B) Since 1960 the teenage unemployment rate has risen even when the minimum wage remained constant.
(C) Employers often hire extra help during holiday and warm weather seasons.
(D) The teenage unemployment rate rose more quickly in the 1970’s than it did in the 1960’s.（B）
(E) The teenage unemployment rate has occasionally declined in the years since 1960.
题干说wage level 下降，失业率却不在上升
A, 取非，wage level 下降，失业率仍上升
B, 即使wage level 不下降，失业率仍上升
c, 无关
D, 1970时间上将范围缩小，没有失业率和wage水平的关系
E, occasionally 将范围缩小, 排除
这道题我做错了，是这样的思路吗？
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