在工程网络计划中，如果某项工作拖延的时间超过其自由时差，则
A.必定影响工程总工期
B.该项工作必定变为关键工作
C.对其后续工作及工程总工期无影响
D.必定影响其紧后工作的最早开蛤时问
正确答案是D
Complete the following sentence with a (compound) word derived from the one(s) given in bracket. Write your word on the ANSWER SHEET.
One of the tyres of the truck exploded because of （ ）. (over, load)
