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【单选题】
( )是人类生存发展的基本条件。【高中】A.
经济安全
B.
文化安全
C.
生态安全
D.
政治安全
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皮皮学刷刷变学霸
举一反三
【简答题】反倾销税计算: 国内某公司从韩国LG化学株式会社购进双酚A一批,成交总价为CIF国内某口岸483360美元,已知该货物需征收反倾销税,反倾销税率为4.7% ,适用的外汇折算价为1美元=6.1005元人民币, 计算(1)进口货物完税价格;(2)应征的反倾销税税款为多少?
【单选题】狂犬病毒几乎可以感染所有温血动物，但造成人类感染的主要传染源是下列哪一种（）
A.
带病毒蝙蝠
B.
带病毒野生动物
C.
带病毒犬
D.
带病毒啮齿动物
E.
带病毒家畜
【单选题】狂犬病毒几乎可以感染所有温血动物，但造成人类感染的主要传染源是下列哪一种（）。
A.
带病毒犬
B.
带病毒蝙蝠
C.
带病毒家畜
D.
带病毒啮齿动物
E.
带病毒野生动物
【简答题】完型填空。 The computer was one of the most important inventions of last century. The first computer was as large as a room. Now some computers are as 1 as television sets. Some computers can even be made ...
【单选题】听力原文：W: What started you in computers? M: I built my first computer when I was in Junior High School. I was an enthusiastic reader. I studied everything I could get my hands on. Then I turned to build...
A.
He turned to become an enthusiastic reader.
B.
He went on to build a machine for his Junior High School.
C.
He became obsessed with computer engineering.
D.
He was brushed by a hook.
【单选题】听力原文：M：When was the first computer built? W：It was built in 1944. M：Is it the same as the computers that we use now? W：No，it was as large as a room and worked very slow. M：But computers have become sm...
A.
It was as large as a TV set.
B.
It was as large as a room.
C.
It was as large as a book.
D.
It was as small as a palm.
【单选题】Which of the following is the first known analog computer?
A.
Personal computer
B.
Difference Engine
C.
Personal Computer
D.
Antikythera mechanism
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