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【多选题】
间隙密封一般在活塞的外圆表面一般开几道宽0.3~0.5mm、深0.5~1.0mm、槽间距2~5mm的环形沟槽,称平衡槽。其作用是(  )。
A.
使活塞自动对中
B.
增大活塞移动阻力
C.
增加润滑效果
D.
减轻质量
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举一反三
【单选题】The worker agreed to _____ the strike if the company would satisfy their demands.
A.
call for
B.
call forth
C.
call off
D.
call up
【单选题】和声大调是在自然大调的基础上如何变化?()
A.
升高第六级音
B.
降低第六级音
C.
升高第七级音
D.
降低第七级音
【简答题】The Japanese company agreed to compensate us for the defective watches by 4% of the total value.
【判断题】“非诚勿扰”机制得到的婚姻匹配是稳定的。
A.
正确
B.
错误
【简答题】和声大调在自然大调的基础上变化了哪个音?是如何变化的?
【简答题】It is agreed that constant arguing doesn’t _____ a happy marriage. A. make out      B. make for            C. make up          D. make up for
【单选题】The company agreed to lend some money to his team ______ that he would pay back the following week.
A.
only if
B.
on purpose
C.
on occasion
D.
on condition
【单选题】We have agreed to ()a joint venture company in that state .
A.
put up
B.
put forward
C.
open
D.
set up
【单选题】What was special about Victoria's first three years running her own company?
A.
She agreed to promote SHC software.
B.
She won major contracts away from SHC
C.
She worked with SHC on product development.
【单选题】The workers agreed to ________ the strike if the company would satisfy their demands.
A.
call for
B.
call in
C.
call off
D.
call up
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