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【单选题】
水准测量时,设每站高差观测中误差为±3mm,若1km观测了15个测站,则1km的高差观测中误差为( )。A.
±15.0mm
B.
±11.6mm
C.
±45.0mm
D.
±26.0mm
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举一反三
【简答题】_ _ande
【单选题】Mark is currently () as a Professor of Electronics.
A.
employ
B.
employee
C.
employed
【简答题】胸大肌的主要作用是使肩关节____和____。
【单选题】The Science of Interruptions In 2000, Gloria Mark was hired as a professor at the University of California. She would arrive at her desk in the morning, full of energy and ready to tackle her to-do li...
A.
Y
B.
N
C.
NG
【单选题】Mark is currently ________ as a Professor of Electronics.
A.
employed
B.
employer
C.
employee
D.
employment
【单选题】使肩胛胸壁关节前伸的原动肌,这个宽阔的肌肉对肩胛骨的前伸起杠杆作用，特别是引起胸锁关节的轴向旋转，该肌肉是
A.
胸大肌
B.
后锯肌
C.
前锯肌
D.
胸小肌
E.
三角肌
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