当下弦节点两侧杆件内力不同时,节点处的杆与节点板连接的侧缝应按()计算。
A.两侧力的较大值
B.两侧力的较小值
C.两侧力之差
D.两侧力之和
参考答案:C
一次函数y=-2x+3的图象不经过第______象限.
The science of medicine, _______ progress has been very rapid lately, is perhaps the most important of all the sciences.
A.to which
B.in which
C.Which
D.with which