单选题Leeway is the（）.Adifference between the true course and the compass courseBmomentum of a vessel after her engines have been stoppedClateral movement of a vessel downwind of her intended courseDdisplacement of a vessel multiplied by her speed
单选题
Leeway is the（）.
A
difference between the true course and the compass course
B
momentum of a vessel after her engines have been stopped
C
lateral movement of a vessel downwind of her intended course
D
displacement of a vessel multiplied by her speed
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在替牙期往往要充分利用替牙间隙(Leeway space),它是 A、在乳牙列上、下颌之间(C、D、E)牙冠近远中宽度总和之差B、上颌或下颌的乳牙(C、D、E)和后继恒牙(3、4、5)之间近远中宽度总和之差C、乳牙列前牙部分，上、下颌间牙间隙总和之差D、乳牙列在下颌骨静止位时，上、下颌C、D、E之颌间间隙E、中性时上、下颌恒切牙的前后的距离
A vessel is wind rode when it is ______.A.at anchor and heading into the windB.backing into the windC.carrying lee rudderD.necessary to apply a leeway correction to the course
Leeway is the ______.A.difference between the true course and the compass courseB.momentum of a vessel after her engines have been stoppedC.lateral movement of a vessel downwind of her intended courseD.displacement of a vessel multiplied by her speed
The non-compete clause has been causing trouble for over 600 years.In 1414 an English court heard the case of John Dyer,an apprentice whose master had stopped him from plying his trade for six months.The judge was having none of it."The contract is contrary to common law,"he ruled.Individuals should be free to pursue the livelihood of their choice.That principle has been diluted in the intervening centuries-most countries give businesses some leeway to use non-compete clauses,whereby workers promise not to start or join firms that go head-to-head with their ex-employer.But their prevalence in America is striking Defenders of these agreements put forward several arguments.One is that non-competes encourage innovation by stopping rivals waltzing off with trade secrets;there is some evidence that levels of investnent are higher at firms where they are used.Another argument is that firms are less likely to train workers if newly skilled employees are able to up sticks and take what they have learned with them to arival.Again,research backs up this claim.a third argument is that firms and employees should be free to contract as they wish he counter-arguments are stronger.The prevalence of non-compete agreements is clear evidence that they are being used indiscriminately.roughly 15 of american employees without a college degree,and a similar share of those earning less than$40,000 a year,are bound by them.Burger-flippers and care-home workers do not have trade secrets to hawk.unp pigr The gains in investment and training must be set against the wider costs.In one study,in Michi-gan,researchers found that workers'job mobility fell by 8%when non-competes were allowed.When people cannot work for another employer who would value their skills,wage growth suffers,too,because people typically achieve the biggest bumps in their salary when they move firm.Non-competes are also associated with a decline in enterprise.One study found that the rate of entry of new firms into knowledge-intensive industries fell by 18 when non-compete clauses could more easily be enforced The costs spill over to all workers-even those who are not subject to non-competes.Young firms are disproportionately important for job growth,for example;if fewer firms are formed,it will affect everyone in the labour market.And non-competes can have a chilling effect even in places that do not Recognise them The drawbacks of non-compete clauses are all the more worrying because of today's business climate.The incentive to invest and train counts for less when,as now,the American economy suffers from a lack of competition.Non-competes are also more worrying when the balance of power between companies and employees are already skewed.The spread of mandatory-arbitration clauses in employment contracts and the decline of trade unions are both signs of that imbalanceThe expression"spill over to"（Line 1,Para.6）is closest in meaning toA.relate toB.belong toC.are owned bD.are paid by
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资料：American Airlines CEO takes blame for maintenance errors, disrupted flightsFriday, April 11,2008By TERRY MAXON and DAVE MICHAELS/The Dallas Morning NewsAmerican Airlines chairman and chief executive officer Gerard Arpey said Thursday that he is taking “personal responsibility” for the bad maintenance that has forced the carrier to cancel some 3,000 flights this week for aircraft inspections.MD-80s sat on the sidelines at Dallas/Fort Worth International Airport on Thursday, when American Airlines canceled more than 930 flights as inspections continued. The Fort Worth-based carrier has canceled 570 flights scheduled today.“I run the company.” Mr.Arpey told reporters at an afternoon news conference.” so if there’s any blame to be had, it is my fault, and I take full responsibility for this.”American canceled more than 930 flights Thursday as its mechanics, quality assurance inspectors and engineers worked to ensure that the carrier’s fleet of 300 MD-80 jets would meet Federal Aviation Administration（FAA） regulations.The Fort Worth-based carrier canceled 570 flights for today as well, and expects the disruptions to continue into the weekend, although an airline spokesman said Saturday’s cancellations should be fewer than today’s.On Tuesday, American grounded its fleet of aging MD-80s,which have an average age of more than 18 years and include some past their 25th birthday, to redo checks of the wiring harnesses in the right wheel well of the jets-only two weeks after it had performed the same inspections.The FAA has said in recent days that its enforcement hasn’t changed or become stricter. But Senator Kay Bailey Hutchison said airlines have told her they’ve noticed difference.“The standard is now being very, very rigidly enforced and leeway is being taken away.”Ms,Hutchison said.“I can’t say if it’s food or bad. But I know that it’s changed.”Today, the U.S. has five to eight aviation fatalities per 100 million people who fly each year; during the mid-1990s,it was about 45 deaths per 100 million people flown.What situation is being reported in the passage?A.American Airlines is trying to meet the FAA regulations.B.American Airlines is canceling 570 flights today.C.American Airlines is blaming its CEO Gerard Arpey.D.American Airlines is making internal inspections.
单选题A vessel is wind rode when it is（）.Aat anchor and heading into the windBbacking into the windCcarrying lee rudderDnecessary to apply a leeway correction to the course
单选题Leeway is the（）.Adifference between the true course and the compass courseBmomentum of a vessel after her engines have been stoppedClateral movement of a vessel downwind of her intended courseDdispla ement of a vessel multiplied by her speed