听力原文: Born in 1879, in Ulm, Germany, Einstein was two years old when his parents moved to Munich. There his father opened a business in electrical supplies. As a boy, Einstein did not learn to talk until later than others of his age, and in his early childhood he was not considered especially bright. But by the time he was 14 years old, he had taught himself advanced mathematics from textbooks. By them he knew what he wanted to be when he grew up. He wanted to be a physicist and devote himself to research.
Einstein could not afford to pay for the advanced education he needed, because his family business had declined. Later, he and his family were forced to leave Munich to live in Milan, Italy, where they had relatives. As for him, the family did manage to send him to a technical school in Switzerland, and later to the Federal Institute of Technology in Zurich. In 1901, when Einstein was 22 years old, he began teaching, and in 1902, he went to work as a patent office examiner in Bern. Now able to pay his own expenses, he continued his schooling at the University of Zurich, where he received a doctor' s degree in 1905. This was the period when he first began the research, which led to his famous theory of relativity.
Toward the end of his life, when Einstein was asked to explain his law of relativity to a group of young students, he said, "When you sit with a nice girl for two hours, you think it' s only a minute. But when you sit on a hot stove for a minute, you think it' s two hours. That is relativity. "
What is Einstein' s greatest contribution to human beings?
A.His teaching.
B.His theory of relativity.
C.His theory on advanced mathematics.
D.His research.
第1题
按照多媒体压缩的原理可分为:熵编码(无损压缩)、源编码(有损压缩)和()。
A)混合编码
B)预测编码
C)矢量量化编码
D)交换编码
第2题
(6)按照多媒体压缩的原理可分为:熵编码(无损压缩)、源编码(有损压缩)和()。
A)混合编码
B)预测编码
C)矢量量化编码
D)交换编码
第3题
按照多媒体压缩的原理可分为:熵编码(无损压缩)、源编码(有损压缩)和()。
A.混合编码
B.预测编码
C.矢量量化编码
D.交换编码
第5题
按照压缩编码的原理可分为:__________(无损压缩)、源编码(有损压缩)和混合编码。
第6题
按照压缩编码的原理可分为3类,分别是:熵编码(无损压缩)、源编码(有损压缩)和______。
第7题
A.混合编码、熵编码
B.波形编码、参数编码、条件编码
C.混合编码、波形编码
D.波形编码、参数编码、混合编码
第8题
(53) A.熵编码
B.熵压缩法
C.MPEG压缩法
D.JPEG压缩法
(54) A.MPEG压缩
B.子带编码
C.Huffman编码
D.模型编码
第9题
按照压缩编码的原理可以分为3种编码方法,以下错误的是______。
A.熵编码
B.源编码
C.混合编码
D.压缩编码
第10题
按照压缩编码的原理可以分为3种编码方法,以下错误的是______。
A.熵编码
B.源编码
C.混合编码
D.压缩编码
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