【单选题】
下述程序的运行结果（ ）。
#includevoid main()
{
int a=5,b=4,c=3,d=2;
if(ac)printf(%d\n
else if((c-1=d)==1)printf(%d\n,d+1);
else printf(%d\n,d+2);
}
①
0
②
1
③
2
④
3
【单选题】
<imgsrc="http://121.251.253.213/doc/a@62CCC9248E6C5CEC9ECB487FFBC2C519.png/download?time=636002476138068722&token=141D02AA787A7554363662D240011921&filename=png"data-url="doc/a@62CCC9248E6C5CEC9ECB487FFBC2C519.png"data-preview_url_ueditor="doc/a@62CCC9248E6C5CEC9ECB487FFBC2C519.png"/>
①
<imgsrc="http://121.251.253.213/doc/a@145B3AC53465C70D90DE0185C036A490.png/download?time=636002476212168852&token=AEBC4369C96DE92EF1B20DF70052F9C3&filename=png"data-url="doc/a@145B3AC53465C70D90DE0185C036A490.png"data-preview_url_ueditor="doc/a@145B3AC53465C70D90DE0185C036A490.png"/>
②
<imgsrc="http://121.251.253.213/doc/a@DBF4517EDFBD9FBFD42E1AEFD412897C.png/download?time=636002476292508993&token=DD1511B0D3AE73B8F5BF2C869A8F52F5&filename=png"data-url="doc/a@DBF4517EDFBD9FBFD42E1AEFD412897C.png"data-preview_url_ueditor="doc/a@DBF4517EDFBD9FBFD42E1AEFD412897C.png"/>
③
<imgsrc="http://121.251.253.213/doc/a@FD0B6F2E4606304A52FAF334BB5BC8E9.png/download?time=636002476370665131&token=D503206A410A9A758039EA014BC6A48F&filename=png"data-url="doc/a@FD0B6F2E4606304A52FAF334BB5BC8E9.png"data-preview_url_ueditor="doc/a@FD0B6F2E4606304A52FAF334BB5BC8E9.png"/>
④
<imgsrc="http://121.251.253.213/doc/a@1AAC94D22983B7C08A700950B6103C74.png/download?time=636002476446481264&token=7B31FF13B112C110C09DD7C42D18DC68&filename=png"data-url="doc/a@1AAC94D22983B7C08A700950B6103C74.png"data-preview_url_ueditor="doc/a@1AAC94D22983B7C08A700950B6103C74.png"/>
【单选题】
<imgdata-url="doc/a@F2A7E4B2617A013170ED03C846074448.bmp"data-preview_url_ueditor="doc/a@F2A7E4B2617A013170ED03C846074448.bmp"src="http://121.251.253.213/doc/a@F2A7E4B2617A013170ED03C846074448.bmp/download?time=636150841837416076&token=7C55E005B87CD01E5005CD6386D93F51&filename=bmp"/>
①
-2V
②
2V
③
6V
④
8V
【单选题】
<imgsrc="http://121.251.253.213/doc/a@9869E09EAF43605DEA686A47F51A268B.png/download?time=636002424844710630&token=3D81364A57C5910712E8421E058F4DFB&filename=png"data-preview_url_ueditor="doc/a@9869E09EAF43605DEA686A47F51A268B.png"data-url="doc/a@9869E09EAF43605DEA686A47F51A268B.png"/>
①
1
②
2
③
1/2
④
<imgsrc="http://121.251.253.213/doc/a@CF1BE005D8413A8F3A904618D0778415.png/download?time=636002424987918882&token=9C9A326147FAB1EC1580EE862DDAA93A&filename=png"data-preview_url_ueditor="doc/a@CF1BE005D8413A8F3A904618D0778415.png"data-url="doc/a@CF1BE005D8413A8F3A904618D0778415.png"/>
【单选题】
<img title="1.png" alt="1.png" src="https://file.icve.com.cn/doc_public4/370/461/5CB735F3549C718ED8FC1325D7BE052C.png"/>
①
<img title="2.png" alt="2.png" src="https://file.icve.com.cn/doc_public4/1011/657/FCFA4613A3B1729D03D441008F62D86B.png">
②
<img title="3.png" alt="3.png" src="https://file.icve.com.cn/doc_public4/340/1017/552FE5A4A278CC2FC472BB3CBC77DE82.png">
③
<img title="4.png" alt="4.png" src="https://file.icve.com.cn/doc_public4/966/238/F1A3B93BE7F969225328E374E892C0E8.png">
④
<img title="5.png" alt="5.png" src="https://file.icve.com.cn/doc_public4/481/552/7848A1D99367D22C72C11418B6A40AC2.png">
【单选题】
已知 <img src="https://file.icve.com.cn/doc_public4/348/428/5706B0CEC785A1D28890DE635497BDA2.jpg" title="1.jpg" alt="1.jpg"/> 则反应<img src="https://file.icve.com.cn/doc_public4/303/967/4BFF1ED4099758C0161D7C1E0071BFD7.jpg" title="1.jpg" alt="1.jpg"/>在标准态下自发进行的方向是（ A ）
①
不反应
②
正向
③
逆向
④
不能判断
【单选题】
某工程分三个施工段组织流水施工，若甲、乙施工过程在各施工段上的流水节拍分别为5d、4 d、1 d和3 d、2 d、3 d，则甲、乙两个施工过程的流水步距为（ ）
①
3 d
②
4 d
③
5 d
④
6 d
【单选题】
正确的左视图是（）<img src="https://file.icve.com.cn/doc_public2/319/180/4FD2D2B45E7EDE18B6AF6CC6057DCD52.png" title="1.png" alt="1.png"/>
①
<img src=http://222.173.11.71/doc_public/b@3E58CC9DF22906412A671903FC025133.png title=2.png alt=2.png/>
②
<img src=http://222.173.11.71/doc_public/b@3DD7834E39705F419658EAB926BABC7A.png title=3.png alt=3.png/>
③
<img src=http://222.173.11.71/doc_public/b@5307D9221B31A8537919762793130020.png title=4.png alt=4.png/>
④
<img src=http://222.173.11.71/doc_public/b@BDCCB9F062E4F37481D7F5938F219B14.png title=5.png alt=5.png/>
【单选题】
<img src="https://file.icve.com.cn/doc_public4/64/54/1010D9B5524830EA9E82ECA811002ED4.png" title="11.png" alt="11.png"/>
①
K1=K2=K3
②
<img src="https://file.icve.com.cn/doc_public4/696/367/AE25BEF1E3C6DFD3713199A717473EDA.png" title="7.png" alt="7.png">
③
<img src="https://file.icve.com.cn/doc_public4/273/139/44422F975861E87DB36F7646F6163DA1.png" title="8.png" alt="8.png">
④
<img src="https://file.icve.com.cn/doc_public4/741/925/B94E76AA5DE0BE6C094EB1B9E749A067.png" title="9.png" alt="9.png">
【单选题】
在图中所示的控制电路中，按下SB2，则（）。<imgsrc="http://121.251.253.213/doc/a@A3F46471D8614EEA821740AECDA66DBF.png/download?time=636680172845900957&token=B91E3A386E2F6237841329257EA3D143&filename=image.png"/>
①
KM1，KT和KM2同时通电，按下SB1后经过一定时间KM2断电
②
KM1，KT和KM2同时通电，经过一定时间KM2断电
③
KM1和KT同时通电，经过一定时间KM2通电
④
KM1和KM2同时通电，经过延时KM1断电