奇瑞A3轿车起动机运转无力故障的检测操作中不需要检测的项目是()
A.蓄电池电压
B.蓄电池接柱是否松动
C.电磁开关触点是否烧蚀
D.点火开关ST2触点是否接触不良
参考答案:D
Which of the following statements about internet is (are) correct Ⅰ. Each host in internet only has a IP address. Ⅱ. It is possible to have multiple names corresponding to the same IP address. Ⅲ. In users’ points, Internet means a virtual network.
A.None
B.Ⅰ and Ⅱ
C.Ⅱ and Ⅲ
D.All
48~52:
设计如题图所示的二柱矩形联合基础。基础材料是:混凝土C20,HRB335钢筋。已知柱1、柱2截面均为bc×hc=300mm×300mm。要求基础左端与柱1外侧面对齐,已确定基础埋深为1.20m。基础宽b=1000mm,高h=500mm,柱上作用有竖向力F1、F2,弯矩M1、M2。
基础最大弯矩与下列()项值接近。
A.-176.9kN·m
B.-180.84kN·m
C.-186.42kN·m
D.-192.6kN·m