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【简答题】
中控门锁主要由_____________、______________、____________、____________、_________________等组成。
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皮皮学刷刷变学霸
举一反三
【单选题】Transportation in the U.S. Railroads are paths of parallel metal rails that allow a wheeled vehicle to move more easily by reducing friction. Iron mils were first used in the early 1800s to guide hors...
A.
Y
B.
N
C.
NG
【简答题】A. cycled B. drove C. wheeled D. fled
【单选题】This kind of metal ______ well，and therefore the metal stick ______ into halves easily. [ ]
A.
is cut，is cut
B.
cuts，cuts
C.
is cut，cuts
D.
cuts，is cut
【简答题】实现教材上的过渡、动画和转换效果。
【简答题】间歇操作的设备要排列工艺 和 。
【单选题】Metal-wheeled chariots are the_________of the tanks of modern warfare.
A.
prototype
B.
original
C.
model
D.
sample
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