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Snazzy · 发表于 2004-1-10 09:38:00

300. Following the destruction of the space shuttle Challenger, investigators concluded that many key people employed by the National Aeronautics and Space Administration and its contractors work an excessive amount of overtime that has the potential of causing errors in judgment.
(A) overtime that has the potential of causing
(B) overtime that has the potential to cause
(C) overtime that potentially can cause
(D) overtime, a practice that has the potential for causing
(E) overtime, a practice that can, potentially, cause

what does 'practice' refer to? I can't find a word. thanks

bigcamel · 发表于 2004-1-10 09:52:00

many key people... work ....overtime

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