问题
单项选择题
19世纪末在物理学领域出现的的所谓“物理学危机”说明（）①人们对自然的认识在不断深入②经典力学并不是什么“经典”，并不科学③经典力学的绝对时空论是不正确的④物理学将面临一场重大革命
A.①②③
B.②③④
C.①③④
D.①②④
答案
参考答案：C
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19世纪末在物理学领域出现的的所谓“物理学危机”说明（）①人们对自然的认识在不断深入②经典力学并不是什么“经典”，并不科学③经典力学的绝对时空论是不正确的④物理学将面临一场重大革命
A.①②③
B.②③④
C.①③④
D.①②④
参考答案：C
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 Once a farmer had some puppies to sell. He painted a(n) 1 advertising the pups and set about nailing it to a post on the edge of his yard. 2 he was driving the last nail into the post, he felt a sudden pull on his trousers.He_3_down into the eyes of a little boy. "Mister, "he said, "I want to buy one of your puppies." "Well, "said the farmer, as he rubbed the sweat off the back of his 4 , "these puppies come from fine parents and 5 a good deal of money." The boy 6 his head for a moment. Then reaching deep into his pocket, he pulled out a handful of 7 and held it up to the farmer. "I've got thirtynine cents. Is that enough to take a look?" "Sure, "said the farmer. And with that he 8 a whistle, "Here, Dolly!"he called. 9 from the doghouse and down the road ran Dolly 10 by four little balls of fur. As the dogs made their 11 to the fence, the little boy noticed something else moving inside the doghouse. 12 another little ball appeared, this one noticeably smaller. The little pup began walking unsteadily toward the others, d oing its best to 13 . "I want that one, "the little boy said, 14 at the runt (矮个子). The farmer knelt down at the boy's side and said, "Son, you 15 want that puppy. He will never be able to 16 and play with you as other dogs would." With that the little boy 17 back from the fence, reached down, and began rolling up one leg of his 18 . In doing so he showed a steel brace(支柱) running down both sides of his leg attaching itself to a 19 made shoe. Looking back up at the farmer, he said, "You see, sir, I don't run too well myself, and he will need someone who understands." The 20 is full of people who need someone who understands. | ||||
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