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【单选题】
汽油机压缩比越高,所用的发动机润滑油质量等级越( )A.
高
B.
低
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【单选题】________________ the newly-published books have been sold so far.
A.
Five hundred
B.
Hundreds of
C.
Five hundred of
D.
Five hundreds of
【简答题】一般饭店的管理层次形成一个 ( )形。
【简答题】心理学家 H.C. 凯尔曼提出了态度形成有三个阶段,即 _____________ 、 _____________ 、 _____________ 。
【单选题】The first books were quite different from the books of today. They were made of baked clay tablets. Some of these tablets that have been found were used in Mesopotamia about fifty-five hundred years a...
A.
clay
B.
wood
C.
stone
D.
papyrus
【简答题】In 1784 , five years before he became president of the United States, George Washington, 52, was nearly toothless. So he hired a dentist to transplant into his jaw nine teeth , which have been extrac...
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