A.0
B.bh²/2
C.b²h/2
D.bh²/8
A.0
B.bh²/2
C.b²h/2
D.bh²/8
A.0
B.bh/2
C.b²h/2
D.bh²/8
A.Q1=10kN、M1=10kN·m,Q2=0、M2=20kN·m
B.Q1=15kN、M1=10kN·m,Q2=0、M2=22kN·m
C.Q1=20kN、M1=15kN·m,Q2=5、M2=30kN·m
D.Q1=10kN、M1=20kN·m,Q2=0、M2=25kN·m
A.AC和CE段
B.AC CD和DE段
C.AB BD和DE段
D.AB BC CD和DE段
A.NCD=-1kN(压力)
B.NCD=-1kN(拉力)
C.NCD=-2kN (压力)
D.NCD=-3kN (压力)
A.<img src="https://cg-service.oss-cn-shanghai.aliyuncs.com/20240111/1704959829144484.png">
B.<img src="https://cg-service.oss-cn-shanghai.aliyuncs.com/20240111/17049598292071013.png">
C.<img src="https://cg-service.oss-cn-shanghai.aliyuncs.com/20240111/1704959829238592.png">
D.<img src="https://cg-service.oss-cn-shanghai.aliyuncs.com/20240111/1704959829258741.png">
A.(1)
B.(2)
C.(3)
D.(4)
A.<img src="https://cg-service.oss-cn-shanghai.aliyuncs.com/20240111/1704959829318998.png">
B.<img src="https://cg-service.oss-cn-shanghai.aliyuncs.com/20240111/1704959829341277.png">
C.<img src="https://cg-service.oss-cn-shanghai.aliyuncs.com/20240111/1704959829400149.png">
D.<img src="https://cg-service.oss-cn-shanghai.aliyuncs.com/20240111/1704959829417864.png">
A.图a)是轴向拉伸或压缩
B.图b)是剪切
C.图c)是扭转,图d)是弯曲
D.图c)是弯曲,图d)是扭转