激励研究的是()。
A.领导行为
B.组织行为
C.人的行为
D.人的心理
参考答案:C
质点做直线运动的 v-t 图象如图所示,则由图像可知:
A.3~4 s 内质点位移为-2 m,加速度为4m/s2
B.4~6 s质点的位移为-4 m,加速度为-2m/s2
C.0 ~4 s 内质点位移为8 m
D.6 s 内质点发生的路程为12m
You are taking over a project and determine the following:Activity B has an early finish(EF)of day 3,a late finish(LF)of day 6,and an early start(ES)of day 2.Activity L is being done by a hard-to-get resource.The cost performance index(CPI) is 1.1 and the schedule performance index(SPI)is 0.8.Based on this information,what would you be more concerned about ?()
A.Float
B.Resources
C.Cost
D.Schedule