若梁的荷載及支承情況對(duì)稱于梁的中央截面C如圖所示,則下列結(jié)論中正確的是()
A.V圖對(duì)稱,M圖反對(duì)稱,且MC=0 B.V圖對(duì)稱,M圖對(duì)稱,且VC=0 C.V圖反對(duì)稱,M圖對(duì)稱,且VC=0 D.V圖反對(duì)稱,M圖反對(duì)稱,且MC=0
A.1/4 B.1/8 C.8 D.4
A.1個(gè) B.2個(gè) C.3個(gè) D.4個(gè)