问题
单项选择题
关于宇宙的起源,最具代表性、影响最大的理论是()
A.能量守恒定律
B.大爆炸理论
C.暗物质学说
D.黑洞理论
答案
参考答案:B
解析:大爆炸理论是宇宙物理学关于宇宙起源的理论。根据大爆炸理论,宇宙是在大约140亿年前由一个密度极大且温度极高的状态演变而来的。
关于宇宙的起源,最具代表性、影响最大的理论是()
A.能量守恒定律
B.大爆炸理论
C.暗物质学说
D.黑洞理论
参考答案:B
解析:大爆炸理论是宇宙物理学关于宇宙起源的理论。根据大爆炸理论,宇宙是在大约140亿年前由一个密度极大且温度极高的状态演变而来的。
Many years ago there lived two brothers in London. They were both very rich. They had 1 ideas about money. They were quarrelling(争吵)about what would happen if a poor man could 2 a million pound note. One thought that anyone with such a note would have 3 he wanted; the other thought that it would be 4 for him to get anything with the note(钞票).They couldn’t agree with each other. So they 5 to make a bet (打赌). It happened that a young man named Henry was wandering through the street that day, who had come to Britain only chance. 6 home and job, he looked pale(苍白的)and 7 . Suddenly he saw an apple 8 away by a child. The man was so hungry that he was thinking of picking it up to eat. Just as he was 9 out his hand, he heard a voice calling him. He looked up and saw the two 10. They gave him an envelope. They told him not to open it until two o’clock. They said, “Nothing but money in it.” Then they left…
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