我
- A.2kN·m
- B.3kN·m
- C.4kN·m
- D.6kN·m
- A.<img src="//img1.yqda.net/question-name/a8/3a688594b3189bf191a62aef901373.png" width="77" height="32"/>
- B.<img src="//img1.yqda.net/question-name/2d/c10a90454dcb138dd8c1ee0277128b.png" width="74" height="34"/>
- C.<img src="//img1.yqda.net/question-name/81/14c6c7adcae5a9c04942812c8bfc25.png" width="65" height="35"/>
- D.<img src="//img1.yqda.net/question-name/45/6f5ed3f99cca7498728420b8d65e4c.png" width="66" height="30"/>
- 18
-
图示结构的超静定次数为
- A.1
- B.2
- C.3
- D.4
- 19
-
图示桁架，零杆的个数为
- A.1
- B.2
- C.3
- D.4
- A.<img src="//img1.yqda.net/question-name/7a/b1d2a8d332c4f0522c3e727a2b9d2f.png" width="24" height="38"/>
- B.<img src="//img1.yqda.net/question-name/f1/048c48d93c059c70b5dc20f98d53fc.png" width="28" height="39"/>
- C.<img src="//img1.yqda.net/question-name/7f/55d7efe774fad16e8126a2ee386239.png" width="24" height="35"/>
- D.<img src="//img1.yqda.net/question-name/5f/0af806c67f1cf16c4c705173b6d20e.png" width="25" height="40"/>
- A.15kN
- B.30 kN
- C.60kN
- D.120 kN
- A.-ql<sup>2</sup>
- B.<img src="//img1.yqda.net/question-name/36/a824444ae372b88f59c5545acd3f04.png" width="40" height="36"/>
- C.<img src="//img1.yqda.net/question-name/fd/ce8ca76d7a9c09601dd711761bf2e9.png" width="31" height="30"/>
- D.ql<sup>2</sup>
- A.<img src="//img1.yqda.net/question-name/be/d8341d38b8f0545bfec43651547063.png" width="138" height="75"/>
- B.<img src="//img1.yqda.net/question-name/eb/48c27a965458176059856a86717cde.png" width="143" height="80"/>
- C.<img src="//img1.yqda.net/question-name/fe/4bda4df5d05bf645ea9d42bab6ac72.png" width="130" height="72"/>
- D.<img src="//img1.yqda.net/question-name/66/933fa305660fdda4036d4c4b325f89.png" width="148" height="80"/>
- A.BA与BC杆的B端
- B.BA与及BD杆的B埔
- C.BD与BC杆的B端
- D.BA、BC与BD杆的B端
- 25
-
图示体系为
- A.有多余约束的几何不变体系
- B.无多余约束的几何不变体系
- C.瞬变体系
- D.常变体系
