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【简答题】
( )是一个盘式制动器,作用于驱动桥的输入轴,制动器由弹簧制动液压缸内的一个强力弹簧压力。 A. 4
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皮皮学刷刷变学霸
举一反三
【单选题】Who volunteered to clean up the oil
A.
Business people, storekeepers and students
B.
Storekeepers, reporters and business people
C.
Farmers, scientists and teachers
【简答题】innovation
【单选题】Who will clean up the cat's ___ in the bedroom?
A.
confusion
B.
disorder
C.
muddle
D.
mess
【单选题】— The floor is clean and dry now. Who _______? — Sorry, I don’t know.
A.
mopped it up
B.
has mopped it up
C.
has mopped up it
D.
mopped up it
【单选题】Your bedroom is very dirty. You must _____. [ ]
A.
clean up it
B.
clean it up
C.
clean them up
D.
clean up them
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