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【单选题】
In an electro-hydraulic steering gear, any change in relative position between the synchronous receiver and the follow-up gear will result in .A.
the pump going to full stroke
B.
closing of the six-way valve
C.
driving the rams up against the stops
D.
a corresponding slowing or increasing of the pumped flow rate
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【多选题】有关门架的说法正确的有()。
A.
底步门架的立杆下端应当设置底座
B.
门架跨度应与交叉支撑的规格配合
C.
上下榀门架立杆应在同一轴线位置，轴线的偏差不应小于2mm
D.
脚手架顶端宜高出女儿墙上皮50mm
E.
高出檐口上皮80mm
【单选题】Their problem today is somewhat similar to _____ they faced many years ago.
A.
that
B.
which
C.
that which
D.
it
【简答题】么是环境问题? prefix="o" ns="urn:schemas-microsoft-com:office:office" ?xml:namespace> 2 环境问题经历了哪几个发展阶段?
【简答题】Somewhat similar is the acceptance of an opinion through the desire —probably not recognized by the person concerned— to justify his own nature, his own position, or his own behavior. ( Para.17 ) ____...
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