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【单选题】
若液压系统的工作压力较,用( )的液压油A.
粘度指数较大
B.
粘度较大
C.
粘度指数较小
D.
粘度较小
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【单选题】多尔蒂先生和他的家人目前正在农场忙于秋收。
A.
Mr. Doherty and his family is currently engaged in getting the autumn harvest in on the farm.
B.
Mr. Doherty and his family are currently engaged in get the autumn harvest in on the farm.
C.
Mr. Doherty and his family are currently engaged in getting the autumn harvest in on the farm.
D.
Mr. Doherty and his family are currently engaging in getting the autumn harvest in on the farm.
【单选题】The author mentions all of the following as possible reasons for going to war in a premodernized society EXCEPT ______.
A.
possibility of material gain
B.
total annihilation of the enemy and destruction of enemy territory
C.
potential for increasing the security of the nation
D.
desire to capture productive farming lands
【单选题】多尔蒂先生和他的家人 目前正在农场忙于秋收 。
A.
are currently engaged in getting the autumn harvest in on the farm
B.
are currently engaged to get the autumn harvest on the farm
【多选题】有关沟槽开挖地基处理施工要求的表述，说法正确的有______。
A.
槽底局部超挖或发生扰动时，超挖深度不超过150mm时，可用挖槽原土回填夯实
B.
槽底地基土壤含水量较大，不适于压实时，应采取换填等有效措施
C.
排水不良造成地基土扰动时，扰动深度在100mm以内，宜填天然级配砂石或块石处理
D.
扰动深度在300mm以内，但下部坚硬时，宜填卵石
E.
柔性管道地基处理宜采用砂桩、搅拌桩、钢板桩等复合地基
【单选题】对于原地基处理，下面哪个说法不正确( )。
A.
二级及二级以上公路路堤基底的压实度应不小于90%
B.
原地面坑、洞、穴等，应在清除沉积物后，用合格填料分层回填分层压实
C.
泉眼或露头地下水，应按设计要求，采取有效导排措施后方可填筑路堤
D.
地面横坡缓于1：5时，原地面应挖台阶，台阶宽度不应小于2m
【简答题】(10分)图1所示电路中,R1=10 ,R2=30 ,R3=30 ,R4=10 ,试用叠加定理求各电阻支路的电流I1、I2、I3和I4。 图1
【简答题】静态会计要素包括( )、( )和( )。
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