For those of us who are concerned about them possibly bothering dogs, there is a blessing. Ultrasound waves are tiny. For instance, the wave that corresponds to the frequency of 25,000 Hz is 14 millimeters, or a little more than half an inch long. For comparison, a 60 Hz wave such as...
The start of the fall semester is just weeks away! If you haven't begun shopping for dorm essentials for your college-bound kid, it's time to start now. We understand your first-time shopping for dorm supplies can be overwhelming (there's so much to get!), so we put together a wha...
Pros:The Surface is good for watching movies-a pleasant thing when stuck in the airport on a business trip-and surfing the Internet. Con:The keyboard is an expensive add-on-costing up to ￡109. It might be cheaper to buy a laptop(though a tablet is much smaller and lighter). ...
2. What should people do without a good team leader? 3. Why do some people dislike teamwork? 4. Do you think young people are good team players? 好客的人 Describe a person who is good at making people feel welcome in his/her home You should say: Who this person is How did you kno...
to mimic the reasoning processes of human experts in a pmited field, such as medical diagnosis or weather forecasting.There may be pmited commercial apppcations for this sort of thing, but there is no way to make a machine that can think about anything under the sun, which a teenager ...
Oh man, this is pretty accurate. I use my thumb as a sleep aide, but have recently decided to quit (or at least try) - sleep ain't what it used to be! Byanon55216— On Dec 05, 2009 it is a comfort and if it does no harm, who cares? I am not immature, just need some ex...
(4)He has such a good laptop that I want to buy one. 7).先行词有比较级修饰时用than;先行词有否定词修饰时用but,表示双重否定,此时的but = who/which/that...not... My mother always gives me more money than is needed.(than作定语从句主语) This year, the farmers have harvested more grai...
the way consumer devices collect and process sleep data remains a black box for users due to proprietary algorithms developed by vendors [29], which adds to the difficulties that people have in verifying their data. Third, it is difficult to define what constitutes good sleep. Consumer devices ...
a teenager. But by their early twenties they had already worked out that the key to happiness was choosing what to process and what to ignore, and to payattentionto what matters. I’ve always been interested in how selective our attention is and why. How come I look at a room of ...
My uncle just bought a laptop to her daughter n he asked me to help her to understand how to use laptop(she's 12 years old n this is the first time she has her OWN laptop). ''Ok, if u wanna bla2 then bla2''. Ok, she replied. BUT, I WAS SHOCKED TO KNOW THAT SHE WATCHED...