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【单选题】
spss数据文件的扩展名是A.
.xls
B.
.sav
C.
.spv
D.
.dbf
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反馈参考答案：
举一反三
【单选题】回答（49）题 查看材料
A.
Scholars differ in interpreting the purpose of the designs.
B.
The largest picture may have been the sites for special ceremonies.
C.
He called Nazca 'the largest astronomy book in the world'.
D.
A Swiss writer named Erich von Daniken wrote that the Nazca lines were designed as a landing place for UFOs.
E.
Other scientists are now searching for evidence to prove this.
F.
Seen from the ground， it looks like lines scratched into the earth.
【单选题】回答（47）题 查看材料
A.
Scholars differ in interpreting the purpose of the designs.
B.
The largest picture may have been the sites for special ceremonies.
C.
He called Nazca 'the largest astronomy book in the world'.
D.
A Swiss writer named Erich von Daniken wrote that the Nazca lines were designed as a landing place for UFOs.
E.
Other scientists are now searching for evidence to prove this.
F.
Seen from the ground， it looks like lines scratched into the earth.
【单选题】请在第____处填上正确答案。
A.
Scholars differ in interpreting the purpose of the designs．
B.
The largest picture may have been the sites for special ceremonies．
C.
He called Nazca“the largest astronomy book in the world”
D.
A Swiss writer named Erich von Daniken wrote that the Nazca lines were designed as a landing place for UFOs．
E.
Other scientists are now searching for evidence to prove this．
F.
Seen from the ground，it looks like lines scratched into the earth．
【单选题】回答（50）题 查看材料
A.
Scholars differ in interpreting the purpose of the designs.
B.
The largest picture may have been the sites for special ceremonies.
C.
He called Nazca 'the largest astronomy book in the world'.
D.
A Swiss writer named Erich von Daniken wrote that the Nazca lines were designed as a landing place for UFOs.
E.
Other scientists are now searching for evidence to prove this.
F.
Seen from the ground， it looks like lines scratched into the earth.
【单选题】回答（48）题 查看材料
A.
Scholars differ in interpreting the purpose of the designs.
B.
The largest picture may have been the sites for special ceremonies.
C.
He called Nazca 'the largest astronomy book in the world'.
D.
A Swiss writer named Erich von Daniken wrote that the Nazca lines were designed as a landing place for UFOs.
E.
Other scientists are now searching for evidence to prove this.
F.
Seen from the ground， it looks like lines scratched into the earth.
【简答题】Men differ from brutes in that they can think and speaks.
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