- A.F
 - B.m
 - C.EI
 - D.l
 
- A.<img src="//img1.yqda.net/question-name/32/0078266777a0fa2d1dbea7feca18bf.png" width="93" height="63"/>
 - B.<img src="//img1.yqda.net/question-name/44/c0ffc49e95e58ee318783cb9b25113.png" width="102" height="59"/>
 - C.<img src="//img1.yqda.net/question-name/9b/7ca8ba43538fb871913035009b325a.png" width="94" height="62"/>
 - D.<img src="//img1.yqda.net/question-name/0a/10de4dd12a7040ea0b52c3c634c924.png" width="103" height="56"/>
 
- A.<img src="//img1.yqda.net/question-name/4c/e9adb89b56c12c0b25f049148a1c68.png" width="190" height="48"/>
 - B.<img src="//img1.yqda.net/question-name/fb/de6121cba9869932ae1b8e9ed11240.png" width="183" height="57"/>
 - C.<img src="//img1.yqda.net/question-name/03/8484e1c4eab2c4b8e94f221efd1388.png" width="177" height="56"/>
 - D.<img src="//img1.yqda.net/question-name/39/05cbf40fd5e7d95a227acd31ca5e18.png" width="189" height="62"/>
 
- A.2M<sub>0</sub>
 - B.M<sub>0</sub>
 - C.M<sub>0</sub>/2
 - D.M<sub>0</sub>/3
 
- A.<img src="//img1.yqda.net/question-name/67/bb80d69a7b20c7c9f3054c5f919a19.png" width="195" height="45"/>
 - B.<img src="//img1.yqda.net/question-name/da/ab296b685f14be0e84302a32d50c54.png" width="185" height="44"/>
 - C.<img src="//img1.yqda.net/question-name/c5/8942196fc723d5669c35158ad4bf77.png" width="185" height="47"/>
 - D.<img src="//img1.yqda.net/question-name/8b/b1a4868bb3b6a9567d743705b52062.png" width="185" height="42"/>
 
- A.A、B二点的线位移之和
 - B.A、B二点的相对线位移
 - C.A、B二截面的角位移之和
 - D.A、B二截面的相对角位移
 
- A.<img src="//img1.yqda.net/question-name/25/20b24104f5e4af9e6310449ad66659.png" width="77" height="34"/>
 - B.<img src="//img1.yqda.net/question-name/ef/0f2947af8b8bf8544d2057fe0c0254.png" width="67" height="31"/>
 - C.<img src="//img1.yqda.net/question-name/13/46381449f5e4640cf39562a4865c12.png" width="66" height="34"/>
 - D.<img src="//img1.yqda.net/question-name/1e/853419903aa0bc49f8022b979bf000.png" width="58" height="33"/>
 
- 24
 - 
									
图示梁D截面弯矩等于

 
- A.0
 - B.<img src="//img1.yqda.net/question-name/06/1a398abeb00f64f7e75ff7155e4d21.png" width="30" height="48"/>
 - C.<img src="//img1.yqda.net/question-name/a1/b980469badae07f1dec1bf39a1f5d1.png" width="37" height="44"/>
 - D.<img src="//img1.yqda.net/question-name/6e/bc2627a4cb6074a5d11a1465263579.png" width="28" height="43"/>
 
- A.0
 - B.F<sub>P</sub>/2
 - C.F<sub>P</sub>
 - D.2F<sub>P</sub>
 
- A.折线
 - B.二次抛物线
 - C.斜直线
 - D.与杆轴平行的直线
 
我



(顺时针方向为正),写出①单元的单元刚度矩阵和单元固端力矩阵,并求其杆端力矩阵。


,动力系数β=___________。
















