A. 2
B. 4
C. 8
D. 7
A. should invest in neither of the two projects
B. could invest in either of the two projects
C. should invest in project A
D. should invest in project B
A. total float and free float
B. total float and independent float
C. free float and independent float
D. none of the above
A. controlling the total quantity at each batch
B. weighing accurately, the quantity of each material for a job before mixing
C. controlling the quantity of each material into each batch
D. adjusting the water to be added in each batch according to the moisture content of the materials being mixed in the batch
A. reduce by 200 kg
B. increase by 200 kg
C. increase by 250 kg
D. reduce by 250 kg
A. Concrete
B. Loose sand
C. Asphalt
D. Firm earth
A. change of critical path
B. decrease of project completion time
C. increase of project completion time
D. all of the above