(单选题)
简支梁受力如图示,则下述正确的是()
A FQC(左)=FQC(右),MC(左)=MC(右)
B FQC(左)=FQC(右)-F,MC(左)=MC(右)
C FQC(左)=FQC(右)+F,MC(左)=MC(右)
D FQC(左)=FQC(右)-F,MC(左)≠MC(右)
正确答案
答案解析
略
A FQC(左)=FQC(右),MC(左)=MC(右)
B FQC(左)=FQC(右)-F,MC(左)=MC(右)
C FQC(左)=FQC(右)+F,MC(左)=MC(右)
D FQC(左)=FQC(右)-F,MC(左)≠MC(右)