委员会的规模大小是依据地区大小及可能达到的正面公关曝光率而定。

The size of the committee depends on the size of the district and the potential for achieving positive public exposure.

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结论：低体重患者CT曝光参数的调整是必要的，以体重为依据进行曝光量设置是可行的。

Conclusin: Optimizing the exposing parameters for Low-weight patients CT scanning is necessary and feasible on basis of patients weight.

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