采用招标方式确定项目可行性研究方案编制单位时的招标费用应在()中考虑。
参考答案:前期工作费
The steeper a firm's marginal revenue product curve for a given resource, the:()
A. more elastic the firm's demand curve for the resource.
B. less elastic the firm's demand curve for the resource.
C. higher the mobility of the resource.
如图,用OA、OB两根轻绳将物体悬于两竖直墙之间,开始时OB绳水平。现保持O点位置不变,改变OB绳长使绳端由B点缓慢上移至B′点,此时OB′与OA之间的夹角θ<90°。设此过程中OA、OB的拉力分别为FOA、FOB,下列说法正确的是()
A.FOA逐渐增大
B.FOA逐渐减小
C.FOB逐渐增大
D.FOB逐渐减小