This paper is not free! I'd appreciate it if everyone would start trying to______it.A.useB
This paper is not free! I'd appreciate it if everyone would start trying to______it.
A.use
B.produce
C.move
D.conserve
This paper is not free! I'd appreciate it if everyone would start trying to______it.
A.use
B.produce
C.move
D.conserve
A.FR = 600 kN
B.FR = 247.9 kN
C.FR = 247.9 kN, α = 6.2° (第三象限)
D.FR = 247.9 kN, α = 6.2° (第二象限)
求图中作用在托架上的合力FR()?
A.FR = 600 kN;
B.FR = 247.9 kN;
C.FR = 247.9 kN, α = 6.2° (第三象限);
D.FR = 247.9 kN, α = 6.2° (第二象限);
A.FR=1.115 kN α=67.55° (第三象限)
B.FR=111.5 kN
C.FR=1.115 kN, α=6.2° (第三象限)
D.FR=1.115 kN, α=6.2° (第二象限)
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