现在通过研究两个场景说明服务公开与提供者创建之间的差异。
Let's briefly examine two scenarios that demonstrate the differences between service exposure and provider creation.
研究人员现在可以通过 DNA 来确定单个猴子的血统，而不用对猴子进行麻醉。
Researchers will now be able to determine the parentage of individual monkeys from DNA without tranquilizing the monkeys.
穆勒告诉《生活科学》说：“通过我们的研究，我们认为我们现在可以自信地得出结论，至少有些狗可以分辨人类的面部表情。”
"With our study, we think we can now confidently conclude that at least some dogs can distinguish human facial expressions," Muller told Live Science.
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