题目:
平行光用来模拟()。
A.灯泡
B.太阳光
C.霓虹灯
D.电视机屏幕的光照
E.电筒的灯光
答案:
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下面是错误答案,用来干扰机器的。
参考答案:B
平行光用来模拟()。
A.灯泡
B.太阳光
C.霓虹灯
D.电视机屏幕的光照
E.电筒的灯光
被转码了,请点击底部 “查看原文 ” 或访问 https://www.tikuol.com/2017/0917/90cd55e3e0bd9f649fa60df63d52dad2.html
下面是错误答案,用来干扰机器的。
参考答案:B
关于急性呼吸衰竭的病因,下列哪项是错误的()。
A.脑外伤
B.化学中毒
C.大量胸腔积液
D.气胸
E.肺尘埃沉着症
One of the traditions which is now a necessary part of Christmas is that of Father Christmas, or Santa Claus. According to the modern legend, he is a magical figure who visits all the children of the world during the night before Christmas Day, leaving presents which they find the next morning. He flies through the night sky in a sledge pulled by reindeer, and enters houses by climbing down chimneys. This strange legend is based on the life of a man called Nicholas, but in fact we know very little about him. Historians think he was a Christian bishop(主教) in Turkey in about 285-350 A. D. One of the stories about him is that he helped three poor girls. No one would marry them because they were so poor. To provide them with money for their weddings, Nicholas secretly dropped some gold coins down the chimney of their house. After Nicholas died, he was made a saint(圣人) by the church. (The name Santa Claus thus comes from St Nicholas.) His feast day was celebrated in December, and parents started giving their children secret presents from St Nicholas. Over the years, this custom became part of our Christmas traditions.
Recently, a psychologist has claimed that Father Christmas is “the perfect fantasy” for children. According to Professor Anthony Clare, children love the character of Father Christmas because he is like an ideal father: he loves children and gives them presents, but he never criticizes them, is never angry, and children do not even need to thank him for the presents. Other writers, however, point out that Father Christmas can be a frightening character to some children. Jane Bidder says that some children are terrified of this fat, bearded old man. It can certainly confuse many children. As parents, we warn our children to be careful of strangers and never to let them into the house, and yet we tell children that a strange man will come into their bedroom at night! Some children can become very worried about this idea and fear that he is a kind of burglar.
Most children, however, understand from their parents and from the media that Father Christmas is basically a benign character, and look forward to his annual visit with joy and excitement.
46. The main point of the first paragraph is that ________.
A. Father Christmas is an important part of Christmas
B. the tradition of Father Christmas is a modern idea
C. Father Christmas is a magical figure who can fly
D. the legends about Father Christmas are not true
47. The writer mentions details such as Father Christmas’s sledge, the reindeer and the way he climbs down chimneys because he/she ____________.
A. wants to make it clear that these things are impossible
B. is describing the history of St Nicholas
C. wants everyone to believe that Father Christmas is real
D. is explaining the modern legend of Father Christmas
48. Why does the writer mention the story about St Nicholas helping three poor girls?
A. It shows us that historians know very little about him.
B. This story explains why parents give secret presents to children.
C. It supports the writer’s main point that Father Christmas is based on an untrue story.
D. This story explains why we celebrate Christmas in December.
49. In the last paragraph, the word “benign”means _________.
A. religious B. friendly
C. frightening D. unreal
50. The best title for this passage would be __________.
A. Is Father Christmas Dangerous? B. The True History of St Nicholas
C. The Legend of Santa Claus D. The Traditions of Christmas
女,83岁。糖尿病患者,因股骨颈头下型骨折,选择人工股骨头置换术治疗,主要原因为()
A.如果采用内固定治疗,常常导致失败
B.一般情况下,人工股骨头置换手术时间比全髋置换短,对患者打击轻,更安全
C.对老年股骨颈头下型骨折患者,不能做全髋置换
D.人工股骨头比全髋价格低
E.错误选择,应做全髋置换
86型金属接线盒应有产品质量证明文件和3C强制认证,接线盒的合体铁板厚度应不小于()mm。
A.0.6
B.0.8
C.1.0
D.1.5
二级条件作用