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要素膳中不含有（）E．
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Panama lies between North and South America. It has an area of 77,000 square kilometers with a population of 1 ,771,000. Its official language is Spanish. Its capital is the largest city. Panama City.
Columbus visited Panama in 1502 on his fourth voyage(航海). It became Spanish colony (殖民地)at the beginning of the sixteenth century. In 1862, when Central America rose against Spain, Panama joined Colombia, which had already declared its independence(独立). It didn't break away from Colombia until the year of 1903 to become an independent republic.
The Panama canal is the country's biggest economic asset(经济资源). Panama and the United States reached an agreement in 1997, which declared Panama would take over all the rights of the Panama Canal in 1999.
Panama was a Spanish colony ______.
听力原文：M: Hello, would you like to go to Disneyland with me this Friday？
W: Oh, I would love to. But...
M: Aren't you free this Friday？
W: Yes, I promised my brother to take care of his children this weekend.
M: All right. Next time you will go with me if you would like.
W: Thank you. I have to go now. Bye.
M: Bye.
What's the woman going to do this weekend？
下面的4个IP地址，属于A类地址的是(53)。
若RAM芯片的容量是2M~8bit，则该芯片引脚中地址线和数据线的数目之和是(6)。
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