单选题

单选题Why does the author mention "local parks and squares" in lines 13-14 when talking about the Olmsted plan?

单选题The Democratic Party, the most oldest existing political party in the United States, has played a vital role in the nation’s history.

单选题Robert Penn Warren’s first novel was published in 1939, and seven years later, his third novel, All the King’s Men, made ------famous.

单选题Celery, an edible plant is having long stalks topped with feathery leaves, A B C grows best in cool weather. D

单选题The word "yet" in line 16 is closest in meaning to

单选题Physics: Complex Theory Professor: It"s ______ we live in a complex world. But the good news is that it doesn"t always take complex or complicated theories to understand it. Because scientists in the 21st century work ______, as teams of specialists examining a whole, rather than as specialists ______, a lot of similar patterns or theories are ______. With the help of ______, scientists are finding simpler answers to very complex questions, than they ______. Mother Nature, it seems, is starting to give up some of her secrets, or we"re just learning to ask the questions better. And like ______, there is a duality or two ways of explaining most things. Complex Theory, as it is called, looks at how very simple things can generate very complex outcomes that could not ______ by themselves. And ______, Complexity Theory looks at how complex systems can generate simple outcomes. First, we"ll look at Complex Theory. You may have noticed the wonderful ______ together in the sky or fish schooling in the oceans. At first glance, we would think the birds would have to be rather intelligent to work out how to fly ______. We would probably also assume there must be a "bird ______ giving the others instructions. But research into this type of behavior ______ has shown that all is required is for each bird to maintain the distance between it and its neighbors and fly ______ of its neighbors. They seem to have ______, like what we usually ______. Jet pilots have to ______ on their instruments, but it is instinctually ______. Whether you"re looking at a big migratory V in the sky or ______ on the Great Barrier Reef, what you see is complex, but the rules organizing it are relatively simple and just seem to ______. On the other hand, Complexity Theory looks at how complex systems can generate simple outcomes. ______. We know we all come from one little cell, that divides over and over eventually organizing itself ______. Consider the billions of cells that make up a person and yet they all manage to work together in such a way that the body ______. We get hungry when we need food. We get thirsty when we need water. We can think and we have a ______. Something happens when large numbers of individual units come together and interact intensely with each other. What we"ve discovered when examining these different dynamic systems and their synergies, or combined operations, is that ______ many different types of systems. What we learn about how a chemical reacts in the blood system can perhaps ______ or weather system, or how a grasshopper"s legs can become the design for hockey knee pads. Perhaps the most exciting new ______ in the life sciences— biology, genetics, ecology and evolution—where complexity is ______ of perspective as profound as that which occurred in physics when ______ became prominent. Indeed, our understanding of the very ______ is undergoing a ______.

单选题It can be inferred from the passage that clay is LEAST likely to be plentiful in which of the following areas?

单选题The cork oak tree has a layer of cork several inches thickness that can be stripped every ten years.

单选题The author mentions the farm laborer and his friends (lines 10-14) in order to do which of the following?

单选题Listentopartofalectureinalawclass.Nowgetreadytoanswerthequestions.Youmayuseyournotestohelpyouanswer.

单选题the tulip tree is native to the eastern United States, __________ the tallest and larges broadleaf tree.

单选题Whatisthepurposeoftheprofessor'sresearchonoldpeople?A.Toinformpeopleoftheagingprocess.B.Tomakepeopleawareofthesideeffectsofaging.C.Toinformpeopleofthediscomfortwitholdage.D.Tomakepeoplechangetheirideaaboutoldage.

单选题ListentopartofaconversationbetweenastudentandaclerkintheRegistrar"sOffice.Nowgetreadytoanswerthequestions.Youmayuseyournotestohelpyouanswer.

单选题The word "ultimately" in line 8 is closest in meaning to

单选题(Cameras) of one type or (another) have been (using) for more than (A) hundred years.

单选题(Hair) grows more (quickly) in summer than in winter and more slowly at (the night) than (during) the day.

单选题Lake Superior, part of the United States-Canadian boundary, is a largest freshwater lake in the world.

单选题The globe artichoke was known as a delicacy at least 2,500 years ago, and records of its A B C cultivation date from fifteenth century. D

单选题________ of classical ballet in the united states began around 1830.