A spokesman for the group says CT scans are frequently used in hospital emergency rooms because the results can be read quicker than with other tests, like ultrasound or MRIs, that do not use radiation.

VOA: standard.2010.01.30

Now, I'm going to be rather quicker in discussing this family of arguments, but let me take at least a couple of minutes and do something about that.

现在,我会加速,讨论这类论证,但起码让我花几分钟,来稍微提一下

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