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螺旋机构结构简单、制造方便,它能将 变换为 。
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举一反三
【单选题】According to the passage, what is the essential difference between grave robbing and archaeology?
A.
Archaeologists are permitted to obtain the treasures of ancient tombs while grave robbers are not.
B.
Grave robbers are allowed to discover the mysteries of ancient tombs while archaeologists are not.
C.
Grave robbers' motivations are monetary whereas archaeologists are interested in uncovering ancient cultures.
D.
Archaeologists open an ancient tomb to sell stolen objects while grave robbers do so for money.
【简答题】He is not a grave man until he is a grave man.
【简答题】__________ [A] serious [B]severe [C] grave [D] heavy
【简答题】翻译bury (1) _______ She was buried beside her husband's grave. (2)_______She buried her face in her hands and cried. (3)_______She is buried in reading the book.
【简答题】中国传统文化是指中国古代（）的文化。
【简答题】中国传统文化是指 年 战争以前的文化。
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