It becomes increasingly difficult to distinguish between your roles as state taxpayer and federal taxpayer.
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With current foot-and-mouth vaccines it is difficult to distinguish between immunised livestock and those which have been infected.
Truth be told, the difference between A Broken Consort and Skelton's solo projects can be difficult to distinguish.
At times, it may be difficult to distinguish pericardial pain from the pain that occurs with a heart attack.
Appearance-wise, it's difficult to distinguish between the two, especially when they're powered off.
In 1950, computer scientist Alan Turing wrote that within 50 years it would become difficult to distinguish between humans and computers.
It is difficult to distinguish between local and international terrorist outfits, let alone between formal organisations and bands of like-minded individuals.
This radiation can be detected although Dyson spheres remain difficult to distinguish from natural astronomical objects that give off similar signatures.
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More difficult are the phishing attempts that direct users to spoof sites that can be difficult to distinguish from the real thing.
But that effect is difficult to distinguish from the industry's broader decline.
Hardware feature sets already begin to feel commoditized and difficult to distinguish.
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At times in the U.S. discourse about China, it is difficult to distinguish whether the emotion driving the debate is fear or hatred.
It may be difficult to distinguish between grief and major depression.
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The reason is that, in the electronic world, it is increasingly difficult to distinguish between the technology of a website and the way it does business.
Because hardship from globalisation is so difficult to distinguish from hardship in general, it would be open season to put up trade barriers in industry after industry.
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At these gatherings - some of which still produce violent clashes - there are so many people taking pictures it is difficult to distinguish between activists and journalists.
However, it is not yet clear how the rule will be applied or how it will prevent some types of proprietary trading that are difficult to distinguish from market-making.
In particular, they will argue that in some internet use - particularly social media sites - it is difficult to distinguish between the details of the communication and the actual content of the message.
Bove noted that although in many ways it is difficult to distinguish WaMu from the rest of its sector, it does hold the distinction of having a particularly tight link to subprime households, leaving it more vulnerable.
Outside these core areas, and at lower altitudes, the culture and farming practices of mountain people can have profound effects on local ecology, making the effects of climate change difficult to distinguish from those directly due to human activities.
Tension headaches can sometimes be difficult to distinguish from migraines, but unlike some forms of migraine, tension headache usually isn't associated with visual disturbances (blind spots or flashing lights), nausea, vomiting, abdominal pain, weakness or numbness on one side of the body, or slurred speech.
Restricting the definition...could make an agreement easier to verify, but ineffective in achieving its purpose of protecting satellites....Furthermore, problems of weapon definition are compounded because some non-weapon space systems, including civil and commercial systems, could have characteristics which would make it difficult to frame a definition to distinguish them.
The Internet is, in any case, set up in a way that makes it difficult for computers to distinguish friend from foe.
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It's been difficult to confirm their safety, however, especially since investigators have to find a way to distinguish between the effects of depression itself -- and habits that depressed women may be more likely to engage in, like drinking and smoking -- and the drug on the newborn.
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