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【单选题】
下面的图形符号表示的液压元件是( )。A.
溢流阀
B.
减压阀
C.
顺序阀
D.
压力继电器
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参考解析：
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皮皮学刷刷变学霸
举一反三
【单选题】AWeb site is often more effective as a(n)______tool than a selling tool．
A.
society
B.
marketing
C.
employ
D.
client
【单选题】—People often don't appreciate what they have, do they? —No, _____ they lose it.
A.
if
B.
after
C.
when
D.
until
【单选题】电力机车轴箱都采用双扭动式弹性拉杆定位装置是（）型电力机车。
A.
韶山4改、韶山8、韶山6
B.
韶山4改、韶山8、韶山3B
C.
韶山3B、韶山8、韶山6
D.
韶山4改、韶山3、韶山6
【单选题】The phrase “flagged up” (Para. 2) is the closest inmeaning to
A.
found
B.
marked
C.
revised
D.
stored
【简答题】How dou you balance your academic and social activities?
【单选题】The phrase “flagged up” (Para. 2) is the closest in meaning to
A.
found.
B.
marked.
C.
revised.
D.
stored.
【单选题】The phrase “flagged up” (Para. 2) is the closest in meaning to
A.
found.
B.
revised
C.
marked
D.
stored
【单选题】What tool is often used for cutting trees?
A.
an electric grinder
B.
an ax
C.
a receiver
【简答题】The phrase “flagged up” (Para. 2) is the closest in meaning to [A] found. [B] marked. [C] revised. [D] stored. 本题为单选题，请选出正确答案，谢谢！
相关题目：
【单选题】电力机车轴箱都采用双扭动式弹性拉杆定位装置是（）型电力机车。
A.
韶山4改、韶山8、韶山6
B.
韶山4改、韶山8、韶山3B
C.
韶山3B、韶山8、韶山6
D.
韶山4改、韶山3、韶山6