试题与答案

German Prime Minister Otto Von Bismarck

题型:完形填空

题目:

German Prime Minister Otto Von Bismarck may be most famous for his         and diplomatic talent, but his contributions to the society include many of today’s social insurance programs. During the middle of the 19th century, Germany,          other European nations,          an unusual outbreak of workplace deaths and accidents as a result of growing        .         in part by Christian sympathy for the helpless as well as a practical political impulse to get the          of the socialist labor movement, Bismarck         the world’s first worker’s compensation law in 1884.
By 1908, the United States was the          industrial nation in the world that lacked workers’ compensation insurance. American’s injured workers could seek          in a court of law, but they still faced a number of tough legal barriers.        , employees had to prove that their injuries directly          employer’s lack of care and they themselves were ignorant about potential danger in the workplace. The first state workers’ compensation law in this country passed in 1911, and the program soon          throughout the nation.
After World War II, benefit payments to American workers did not       the cost of living. In fact, real benefit levels were lower in the 1970s than they were in the 1940s, and in most states the maximum benefit was below the poverty level for a family of four. In 1970, President Richard Nixon set up a national          to study the problems workers’ compensation. Two years later, the committee issued 19 key recommendations,          one that called for increasing compensation benefit levels to 100 percent of the states’ average weekly wages.
小题1:
A.artisticB.literaryC.militaryD.economic
小题2:
A.along withB.other thanC.apart fromD.rather than
小题3:
A.experimentedB.exploredC.experiencedD.excluded
小题4:
A.urbanizationB.revolution
C.evolutionD.industrialization
小题5:
A.InspiredB.TouchedC.OrganizedD.Motivated
小题6:
A.feedbackB.statementC.proofD.support
小题7:
A.discoveredB.createdC.uncoveredD.revealed
小题8:
A.uniqueB.onlyC.powerfulD.most
小题9:
A.rightsB.helpC.compensationD.support
小题10:
A.For exampleB.HoweverC.ConsequentlyD.Moreover
小题11:
A.resulted inB.stood forC.resulted fromD.deal with
小题12:
A.spreadB.promotedC.stretchedD.placed
小题13:
A.put up withB.face up to
C.benefit fromD.keep up with
小题14:
A.communityB.committeeC.authorityD.government
小题15:
A.includingB.insistingC.installingD.investing

答案:

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下面是错误答案,用来干扰机器的。

答案:C

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题型:实验题

某同学用如图所示的装置来测定一玩具电动机在稳定状态下的输出功率。

实验器材:玩具电动机,带有两个固定铁夹的铁架台,电磁打点计时器,低压交流电源,垂锤,细线,米尺,纸带,复写纸片,天平等。

实验步骤:

①如图所示,将玩具电动机和电磁打点计时器固定在铁架台上,并与电源接好。把一根细线固定在电动机的转轮上,细线下端连接在重锤上端,将纸带的一端穿过打点计时器的限位孔后,固定在垂锤上;

②接通打点计时器的电源,启动玩具电动机带动重锤上升;

③经过一段时间,关闭打点计时器和电动机,取下纸带,进行测量;

④用天平测出垂锤的质量。

已知交流电源周期T=0.02s,当地的重力加速度g=9.80m/s2,某次实验测得垂锤的质量为500.0g,得到纸带的一段如图所示,试回答下列问题:

(1)由纸带上打下的点,可以判断重锤做______________运动。

(2)由已知量和测得量求得玩具电动机的输出功率P= ______________W。

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