如果实用程序报告没有区别(一般来讲，这意味着没有任何反馈回送到命令行或shell提示符)，那么表示这两个文档是相同的，然而，这种情况很少发生。
If, as rarely occurs, the utility reports back no differences (generally this means that nothing is echoed back to the command line or shell prompt), then the documents are the same.
他们只用花很少钱就可以掠夺我们前期的战斗果实。
They will reap the benefits of our basic campaign by simply spending a few dollars on specifics.
结果实行“四手操作”的口腔医疗机构很少，仅占6.00%，使用橡皮障的医疗机构极少，占0.67%；
Results "Four-handed"technique was adopted in 6.00% of the clinics, while rubber dams were used only in 0.67% of the clinics.
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