问题:单选题American Indian cultures differ markedly from one another in language and in life-style.A historically B regionally C thereby D significantly
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问题:单选题______A to B in C out D off
问题:单选题______A lookB perceiveC considerD observe
问题:单选题The noun phrase “the medicine” underlined in Paragraph 1 refers to the _________.A turtleB medicine made from turtleC cancer cureD pet trade
问题:单选题______A thing B reality C fact D conclusion
问题:单选题What impact did color printing have on children’s books?A Sales increased by the middle of the 19th century.B Rough illustrations were now more appealing.C Illustrations told more of the story and were more appealing.D Books became more amusing.
问题:单选题It is really a modern firm. Its turnout is so large that it can notably influence the market.A vaguely B conspicuously C obscurely D famously
问题:问答题Robot Even before the first robot was built, the subject of robotics was controversial. The word robot was coined in 1921 by a Czech playwright who wrote about a colony of machines endowed with artificial intelligence that eventually turned against3 their human creators. Although that account was fictional, the first industrial robots were in use by the early 1960s. Today, we continue to be intrigued by robots and their potential for both good and evil. Basically, a robot is any machine that performs work or other actions normally done by humans. Most robots are used in factories to make products such as cars and electronics. Others are used to explore underwater, in volcanoes and even on other planets. Robots consist of three main components: a brain, which is usually a computer; actuators and mechanical parts such as motors, wheels and gears; and sensors for detecting images, sound, temperature, motion and light. With these basic components, robots can interact with their environment and perform the tasks they are designed to carry out. The advantages are obvious — robots can do things humans just don’t want to do, and they are usually more cost effective. Robots can also do things more precisely than humans and allow progress in medical science and other useful advances. But, as with any machine, a robot can break down and even cause disaster. There’s also the possibility that wicked people will use robots for evil purposes. Yet this is also true with other forms of technology such as weapons and biological material. Robots will probably be used even more in the future. They will continue to do tasks where danger, repetition, cost or the need for precision prevents humans from performing. As to whether they will be used for good or evil, that depends on the nature of the humans who create them.
问题:单选题______A positivelyB negativelyC subjectively D objectively
问题:单选题These observations indicates the extreme difficulty in cultivating this precious thing called democracy.A elaborate B treasonable C valuable D deliberate
问题:单选题______A succeedingB failingC actingD responding
问题:单选题According to the passage, what changed children’s publishing in 1774?A The Newberry Medal.B Some books began to be produced mainly for children to enjoy.C Some books had attractive formats, quality illustrations and sturdy bindings.D Some books no longer contained religious instruction rules of behavior, ethical messages and moral platitudes.
问题:单选题______A nothing else B something elseC anything else D none
问题:单选题That play has puzzled authorities for generations, but to my father has the clarity and the simplicity of a medieval moral play.A perplexed B disordered C anguished D seduced
问题:单选题______A powerfulB hugeC dangerousD disastrous
问题:单选题On January 20, 1778 Captain James Cook took his two vessels into a small harbor on the island of Kauai.A assistants B ships C vehicles D guns