单项选择题

Within just six weeks of the safety program"s ______, on-the-job accidents had dropped by almost 30%.

A．launch
B．staff
C．limitation
D．touch
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The majority of those who attended the meeting remained ______ throughout the entirety of the exciting presentation.
A．captivating
B．captivation
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According to recent reports, the numbers of ______ in Allenton is expected to double by the year 2010.
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B．manufacturing
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