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【单选题】
汽车在不转向时,液压式动力转向系统内工作油是高压油,而分配阀又处于关闭状态,此种液压式转向助力器为( )。A.
常压式
B.
常流式
C.
变化式
D.
混合式
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举一反三
【单选题】The author was glad there was one seat available on the train.
A.
True
B.
False
C.
Not Given
【单选题】The author was glad that the pious lady personally taught him a great truth in thinking.
A.
T
B.
F
【判断题】The author was glad that the pious lady personally taught him a great truth in thinking.
A.
正确
B.
错误
【单选题】The author was glad there was one seat available on the train.
A.
True
B.
False
C.
Not given
【简答题】The
author was glad that the pious lady personally taught him a great truth in
thinking.A. T B. F
【判断题】The author was glad that the pious lady personally taught him a great truth in thinking.
A.
正确
B.
错误
【单选题】The fact _____she works hard is well known to us all
A.
.That
B.
.what
C.
.why
D.
which
【简答题】简述强心药的分类及药理作用?
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