直径为d 的圆轴，两端受扭转力偶矩T作用，下列结论中哪些是正确的？ 答：（ ）。(1)轴内只有切应力，无正应力。(2)轴内横截面上有切应力，无正应力。(3)轴内有正应力，最大正应力的值与最大切应力的值相等。(4)轴内最大切应力。 Mostly...
While a negative slippage grinds the gears of many traders, its positive version is a welcome phenomenon, which, unfortunately, a large number of traders will find out because brokers usually act as if positive slippage never existed. But why do slippages occur and can they be predicted and ...
He says there are other pensions products on the market that are as or even more attractive to buyers at present - and that not enough brokers offer LISAs. Read our last post for a bit more on what the LISA is. "There shouldn't be a problem, but [the LISA] be...
Chris Guillebeau’s quest to visit every country in the world and his most recent book “The Happiness of Pursuit” are fabulous examples of this theme in business. The Journey/Return These stories are about being thrown into circumstances not of your choosing. There’s definitely a journey, ...
He says there are other pensions products on the market that are as or even more attractive to buyers at present - and that not enough brokers offer LISAs. Read our last post for a bit more on what the LISA is. "There shouldn't be a problem, but [the LISA] been structured...
UK Energy Bills Are Skyrocketing. Why Is It Happening? More The Associated Press FILE - An electricity pylon is seen in Lydd, southern England, Monday, Aug. 15, 2022. A deepening cost-of-living crisis in Britain is about to worsen, with millions of people expected to pay more a year o...
Other states also experienced declines in manufacturing, such as in the Deep South, but they are not usually considered part of the Rust Belt. Poverty in the Rust Belt Blue-collarjobs have increasingly moved overseas, forcing local governments to rethink the type of manufacturing businesses that ...
题目Over the past several years,e-cigarettes have entered the marketplace and become very popular.Many smokers turn to them,believing that they are a safe alternative to smoking tobacco cigarettes,but are they?Unfortunately,they're not:E-cigarettes are just another way of putting ni...
Those same brokers and traders are now surrounded by computers that manage the majority of the buying and selling of stocks for their various accounts. Floor trading still exists, but it is responsible for a rapidly diminishing share of market activity. Key Takeaways Open outcry was developed aft...
Dogs are called"man's best friend". Now a study shows new reasons why they really are our best friends. Re searchers at UCLA Medical Center in Los Angeles, Califor-nia, said that dogs can be good for people's illness.Researchers studied 76 patients who were in the hospi-tal for heart...