单项选择题

建筑结构,章节练习,建筑力学

A.45kN(拉力)
B.45kN(压力)
C.15kN(拉力)
D.15kN(压力)
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单项选择题
A.1.5kN·mB.2kN·mC.2.5kN·mD.0kN·m
A.1.5kN·m
B.2kN·m
C.2.5kN·m
D.0kN·m
单项选择题
The range of a SSB transmission is MOST affected by ______．A.Atmospheric noise and radiated powerB.The frequency band selected and time of day or nightC.Interference and position of the moonD.Radiated power and nearness to shore
A.A.Atmospheric
B.The
C.Interference
D.Radiated
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