【单选题】
<img src=http://60.205.157.60/course/a@E051F620C245FD49670F9383D0B8F3C2.jpg title=单选题图3.jpg alt=单选题图3.jpg/>如图3所示为四根材料相同、直径相等的杆件。承载能力大的是( )杆。
①
图a。
②
图b。
③
图c。
④
图d。
【单选题】
<img src=https://huaweicloudobs.ahjxjy.cn/E10904D8000BEA788E2D42A396596735.png title=2.png alt=2.png/>
①
<img src=https://huaweicloudobs.ahjxjy.cn/02D4C2BE9D52A35C90DF194862D526B2.png title=2-1.png alt=2-1.png/>
②
<img src=https://huaweicloudobs.ahjxjy.cn/CE7C38610F590D2FCA41298C10D72AD5.png title=2-2.png alt=2-2.png/>
③
<img src=https://huaweicloudobs.ahjxjy.cn/CD742D25A4F3E41581EF0A49FCC669A7.png title=2-3.png alt=2-3.png/>
④
<img src=https://huaweicloudobs.ahjxjy.cn/401EE102E6EE40B403F9134122CE487E.png title=2-4.png alt=2-4.png/>
【单选题】
<img src=https://huaweicloudobs.ahjxjy.cn/F87F4FFFD9E71A5DC1339D0D3512E1FA.png title=2.png alt=2.png/>
①
<img src=https://huaweicloudobs.ahjxjy.cn/6F10CA295CC8BFF2F80DE89633951398.png title=2-1.png alt=2-1.png/>
②
<img src=https://huaweicloudobs.ahjxjy.cn/AC4BA420F0CBC0313D728B342BD04956.png title=2-2.png alt=2-2.png/>
③
<img src=https://huaweicloudobs.ahjxjy.cn/8ACB02F1BE9A394475CBFC12E72BEDB9.png title=2-3.png alt=2-3.png/>
④
<img src=https://huaweicloudobs.ahjxjy.cn/4BB7ABF2790D9E22A4E5FB0CDF3528F9.png title=2-4.png alt=2-4.png/>
【单选题】
<img src=http://60.205.157.60/course/a@6305362AE860D59626DD2F115B57EFF0.jpg title=单选题图12.jpg alt=单选题图12.jpg/>图11示构件为T形截面，其形心轴最有可能的是（ ）。
①
Z1
②
Z2
③
Z3
④
Z4
【单选题】
<img src=https://huaweicloudobs.ahjxjy.cn/190AFEA7694E6F2DC52CAC6CFAF4BCCE.png title=2.png alt=2.png/>
①
<img src=https://huaweicloudobs.ahjxjy.cn/F8C3CCBF0FCF3C66F3176A5AC5C4428B.png title=2-1.png alt=2-1.png/>
②
<img src=https://huaweicloudobs.ahjxjy.cn/C975D584DDFE1B8F5F5AB38E3FE18988.png title=2-2.png alt=2-2.png/>
③
<img src=https://huaweicloudobs.ahjxjy.cn/FBD3783231CE7DED930144512D40810D.png title=2-3.png alt=2-3.png/>
④
<img src=https://huaweicloudobs.ahjxjy.cn/7FDF61CA1D2B312B3BD569A3D44BA7EF.png title=2-4.png alt=2-4.png/>
【单选题】
<img src=https://huaweicloudobs.ahjxjy.cn/FBF5BF7DE835CAAC2E23322746CFFD36.png title=2.png alt=2.png/>
①
<img src=https://huaweicloudobs.ahjxjy.cn/7CC51D5FCE8C0CC2DF07D6CB5147DF14.png title=2-1.png alt=2-1.png/>
②
<img src=https://huaweicloudobs.ahjxjy.cn/FBE995F9E2FC28A279659CD9F4D24043.png title=2-2.png alt=2-2.png/>
③
<img src=https://huaweicloudobs.ahjxjy.cn/1C7B8D2E5DFE745EEF6248DC4E47888A.png title=2-3.png alt=2-3.png/>
④
<img src=https://huaweicloudobs.ahjxjy.cn/6291788E35C4B96DF30393C58B66BBC7.png title=2-4.png alt=2-4.png/>
【单选题】
<img src=https://huaweicloudobs.ahjxjy.cn/FB125A5C638A733F2E25066D6EBE1A45.png title=2.png alt=2.png/>
①
<img src=https://huaweicloudobs.ahjxjy.cn/559AA49E4B715CA8E4564367541FB32B.png title=2-1.png alt=2-1.png/>
②
<img src=https://huaweicloudobs.ahjxjy.cn/6B8992172FD0DA673284EADA0DEBA3B1.png title=2-2.png alt=2-2.png/>
③
<img src=https://huaweicloudobs.ahjxjy.cn/8307E3C9FB06876FE108BCD178A75B33.png title=2-3.png alt=2-3.png/>
④
<img src=https://huaweicloudobs.ahjxjy.cn/2779B84DB2CCFC5CE6E9837B0E0AA5B5.png title=2-4.png alt=2-4.png/>
【单选题】
<img src=https://huaweicloudobs.ahjxjy.cn/E141F1DAE9EFC72B3AA3649FF0F652B2.png title=2.png alt=2.png/>
①
<img src=https://huaweicloudobs.ahjxjy.cn/3B8B15CB7FFEBB40415542F084C2F14F.png title=2-1.png alt=2-1.png/>
②
<img src=https://huaweicloudobs.ahjxjy.cn/AA131778AE25E724EE0DA79637BAA0E1.png title=2-2.png alt=2-2.png/>
③
<img src=https://huaweicloudobs.ahjxjy.cn/363982B169F66951F1043333928DBD3E.png title=2-3.png alt=2-3.png/>
④
<img src=https://huaweicloudobs.ahjxjy.cn/CFD0F609E35E3BB38F5F81EAB182E38A.png title=2-4.png alt=2-4.png/>
【单选题】
<img src=https://huaweicloudobs.ahjxjy.cn/97A321C54CDE390E45CABB40E0385792.png title=2.png alt=2.png/>
①
<img src=https://huaweicloudobs.ahjxjy.cn/120FFEBE12173E72E2E586E9D411B33A.png title=2-1.png alt=2-1.png/>
②
<img src=https://huaweicloudobs.ahjxjy.cn/783C74CDD717EF027F8C7B8227F4E7E8.png title=2-2.png alt=2-2.png/>
③
<img src=https://huaweicloudobs.ahjxjy.cn/184FA4D262A2B6AEC7953A55374537C0.png title=2-3.png alt=2-3.png/>
④
<img src=https://huaweicloudobs.ahjxjy.cn/7A2A9D21570021EB863D6D11B9B4ADAE.png title=2-4.png alt=2-4.png/>
【单选题】
<img src=http://60.205.157.60/course/a@3BD5823AE12A7D1389E20966DAD9D391.jpg title=单选题图13.jpg alt=单选题图13.jpg/>图13示单跨梁的传递系统CAB是（ ）。
①
0.5
②
0
③
-1
④
2
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