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The Lego Group had a very humble beginning in the workshop of Ole Kirk Christiansen, a carpenter from Denmark. Christiansen began creating wooden toys in 1932. Two years later, he stumbled on the Lego name by putting together the first two letters of the Danish words Leg and Godt, which mean “play well.” The name could be interpreted as “I put together” in Latin; it also corresponds to the Greek verb meaning “gather” or “pick up.” In 1947, the company expanded to making plastic toys. At first, the use of plastic for toy manufacture was not highly regarded by retailers and consumers of the time. Many of the Lego Group’s shipments were returned, following poor sales. However, Christiansen’s son, Godtfred Kirk Christiansen, saw the immense potential in Lego bricks to become a system for creative play. As the junior managing director of the Lego Group, he spent years trying to improve the “locking” ability of the bricks and made the bricks more versatile. In 1958, the modern interlocking brick design was finally developed and patented. Today Lego is sold in more than 130 countries. Every minute 33,824 Lego bricks are made, and kids around the world spend 5 billion hours a year playing with Lego. There will be more than 400 million people playing with Lego bricks this year. On average, every person in the world owns 62 Lego bricks, and about seven Lego sets are sold every second. This year Lego fans all over the world are celebrating the 50th anniversary of the tiny building blocks. Though already 50 years old, Lego is still the same product it was in the 1950s. Bricks bought then are still compatible with current bricks and that is probably the reason the toy has never fallen out of favor. 65.   Which of the following is true about the name Lego? A. It is a combination of Greek and Latin words. B. It was created by Ole Kirk Christiansen’s son. C. It was created in 1947 for naming the plastic toys. D. It came from Danish words meaning “play” and “well.” 66.   When did the Lego brick become as a creative form of toy? A. 1958          B. 1947    C. 1934    D. 1932 67.   Which of the following is true in describing the popularity of Lego? A. More than 5 billion people in the world own Lego sets. B. Children spend an average of 62 dollars on Lego bricks each year. C. People in the world spend 400 million hours playing with Lego every year. D. The Lego Group now produces more than 30 thousand toy bricks every minute. 68. What is the main reason that Lego remains popular up to now? A. Old Lego bricks may still be connected to new ones. B. The company hasn’t changed its name since 1947. C. The material for the bricks has proved to be safe. D. The price of the toy is relatively reasonable.
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【单选题】参与言语形成的动力系统是
A.
呼吸系统
B.
C.
大脑
D.
鼻咽腔
【单选题】装有容许信号的通过信号机,显示停车信号时,准许铁路局规定的(),在该信号机前不停车。
A.
直达货物列车
B.
动车组列车
C.
停车后起动困难的货物列车
D.
不适应在站外停车的列车
【单选题】装有容许信号的通过信号机,显示停车信号时,超过牵引定数81t的货物列车在该信号机前()。
A.
停车
B.
以遇到阻碍能随时停车的速度(最高不超过20km/h)通过
C.
按规定速度继续运行
D.
匀速
【单选题】语言是指( )
A.
只与声带有关
B.
音声语言形成的机械过程,需相关的神经、肌肉、器官参与完成
C.
人们社会活动中约定俗成的一种符号系统,主要包含语言理解能力和语言表达能力;
D.
声音的音质、音高
【判断题】装有容许信号的通过信号机,显示停车信号时,所有列车必须在该信号机前停车。
A.
正确
B.
错误
【单选题】背包问题就是给定n种物品和一个背包,设Wi为物品i的重量,Vi为其价值,C为背包的重量容量,要求在重量容量的限制下,尽可能使装入的物品总价最大。用贪婪算法解决背包问题,贪婪准则为:每次都选择价值最大的物品装包。假设n=3;W1=100,V1=50;W2=20,V2=30;W3=20,V3=40;C=110。下列说法正确的是( )
A.
选物品 1 ,这种方案的总价值为 50
B.
选物品 2 和 3 ,总价值为 70
C.
使用贪婪准则,能保证得到最优解
D.
选物品 1 和 3 ,总价值为 90
【简答题】自动闭塞区间装有容许信号的通过信号机显示停车信号及容许信号灯光熄灭或通过信号机灯光都熄灭时,司机应如何处理?
【简答题】一个有b条支路的电路,如果需要求出所有支路电流,则应该列出( )个方程。
【单选题】背包问题就是给定n种物品和一个背包,设Wi为物品i的重量,Vi为其价值,C为背包的重量容量,要求在重量容量的限制下,尽可能使装入的物品总价最大。用贪婪算法解决背包问题,贪婪准则为:每次都选择价值最大的物品装包。假设n=3;W1=100,V1=50;W2=20,V2=30;W3=20,V3=40;C=110。下列说法正确的是 ( )
A.
选物品 1 ,这种方案的总价值为 50
B.
选 2 和 3 ,总价值为 70
C.
使用贪婪准则,能保证得到最优解
D.
选物品 1 和 3 ,总价值为 90
【单选题】()是指人体运动系统的结构、功能损伤造成的四肢 残缺或四肢、躯干麻痹、畸形等导致人体运动功能不同程度丧 失以及活动受限或参与的局限。
A.
肢体残疾(√)
B.
听力残疾
C.
视力残疾
D.
言语残疾
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