请你用功的公式W=F•S编一道计算题.只编题,不要求解答.
根据题意得:放学后,小王用100N的力把一个木箱沿着水平地面向前推了10m,小王推木箱做了多少功?
冬季偏南风将海洋空气吹入大陆后,我国大陆将受()控制,天气。
A.冷气团;不稳定、晴朗
B.冷气团;稳定、多雾或层云
C.暖气团;不稳定、晴朗
D.暖气团;稳定、多雾或层云
Once the durations of the activities are calculated for a completed network, a forward pass and a backward pass will provide ______.
A) the float of the activitiesB) the early start and late start onlyC) the critical pathD) A and C