一家大型汽车部件零售商的内部审计师想进行风险分析，并希望运用适当的统计工具帮助确定与大部分商店比较，哪家商店会明显不同。应使用的最适当的统计工具是：

A．线性时间序列分析。
B．跨区域回归分析。
C．利用交叉表进行卡方显著性分析。
D．时间序列多元回归分析，以确定单个商店在一定时间内的变化。

After striking his head on a tree while falling from a ladder, a young man is admitted to the emergency department. He's unconscious and his pupils are nonreactive. Which intervention would be the most dangerous for the client

A．Give him a barbiturate.

B．Place him on mechanical ventilation.

C．Perform a lumbar puncture.

D．Elevate the head of his bed.