图示结构中,已知各杆EI=常数,则A截面弯矩(内侧受拉为正)为:[img=186x125]1803b44812417cd.jpg[/img]
A: 0
B: [img=53x27]1803b44819fe6f5.png[/img]
C: [img=53x27]1803b44822189d5.png[/img]
D: [img=71x27]1803b44829d3751.png[/img]
A: 0
B: [img=53x27]1803b44819fe6f5.png[/img]
C: [img=53x27]1803b44822189d5.png[/img]
D: [img=71x27]1803b44829d3751.png[/img]
举一反三
- 图示结构中,已知各杆EI=常数,则A截面弯矩(内侧受拉为正)为:[img=186x125]18033023a1aeecd.jpg[/img] A: 0 B: [img=53x27]18033023aadde33.png[/img] C: [img=53x27]18033023b332e94.png[/img] D: [img=71x27]18033023bc0af90.png[/img]
- 图示结构中,已知各杆EI=常数,则A截面弯矩(内侧受拉为正)为:[img=186x125]1803b44812417cd.jpg[/img] 未知类型:{'options': ['0', '', '', ''], 'type': 102}
- 图示刚架中,所有杆件长度均为l,截面C的弯矩为(内侧受拉为正):[img=115x139]18033022118870c.jpg[/img] A: [img=21x26]18033022196d774.png[/img] B: [img=35x26]1803302221b2efb.png[/img] C: [img=39x27]180330222a7749c.png[/img] D: -[img=53x27]18033022330ff58.png[/img]
- 函数[img=121x37]17e4390faefecbb.png[/img]的极值为() A: 在x=-2处取极大值27 B: 在x=-2处取极小值27 C: 在x=-3处取极小值27 D: 在x=-3处取极大值27
- f(x)在x处可导,a,b为常数,则[img=27x32]1802fa0c04c2042.png[/img][img=234x25]1802fa0c10631ae.png[/img]= A: [img=93x26]1802fa0c195a7ad.png[/img] B: [img=93x26]1802fa0c2233a71.png[/img] C: [img=39x26]1802fa0c2adc024.png[/img] D: f(x)