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【单选题】
减速器的一对齿轮中Z1 =24,Z2 =72,试求该减速器的传动比( )。
A.
2.0
B.
2016-01-03
C.
3.0
D.
以上说法均不对
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【简答题】简述高血压的诊断标准。
【单选题】When her parents died, Patricia had to ______ her three sisters.
A.
grow up
B.
care about
C.
bring up
D.
concern about
【简答题】离合器从动盘上的扭转减振器的作用是什么?
【单选题】The girl has been living()since her parents died.
A.
on her own
B.
in a row
C.
in addition
【多选题】离合器从动盘上的扭转减振器的作用是什么?
A.
减小或消除发动机与传动系所产生的共振现象。
B.
减小传动系所产生的扭转振动振幅。
C.
缓和传动系偶然发生的瞬时最大载荷,减少冲击,提高传动系零件的寿命。
D.
使汽车起步平稳。
【单选题】Her parents died when she was young so she was ______ by her grandma.
A.
bred
B.
fed up
C.
grown up
D.
brought up
【单选题】The girl has been living()since her parents died.
A.
on her own
B.
in a row
【单选题】The girl has been living _______ since her parents died.
A.
In a row
B.
Now that
C.
on her own
【简答题】应付账款账户的期初余额为贷方10万元。本期偿还借款2万元,该账户的期末余额为( )。
【单选题】患儿,女性,出生3天后因双下肢及臀部硬肿入院,体温30°C,腋-肛温差为1°C拟采用暖箱进行复温,起始温度应为
A.
26℃
B.
28℃
C.
30℃
D.
32℃
E.
34℃
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