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【简答题】
主动齿轮轴通过做________(顺时针或逆时针)运动,带动从动齿轮轴旋转,为吸油。
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反馈参考答案：
举一反三
【单选题】It is in the joints of human body that movements of the bones take place. The movement itself is caused by the pull of sheets and cords of very tough tissue(组织) called muscle. Muscle tissue has the sp...
A.
grows
B.
shortens
C.
relaxes
D.
pushed
【单选题】The phrase 'extensive muscular inhibition' means______.
A.
the body is incapable of movement
B.
the muscles in the body are relaxed
C.
voluntary muscles are capable of movement
D.
the brain shows rapid burst of neural activity
【多选题】which elements inside the body can maintain the functions of heart beat ,muscle and nerve tissue movement? ( )
A.
calcium
B.
magnesium
C.
sodium
D.
potassium
【判断题】_______ Body movement cannot be used to detect the beginning and end of conversation.
A.
正确
B.
错误
【单选题】For some animals, locomotionis accomplished by changes in body shape.
A.
evolution
B.
movement
C.
survival
D.
escape
【单选题】Body movement in a presentation should be __________.
A.
comfortable and relaxed
B.
as much as possible
C.
swaying your body from side to side
D.
artistic
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