● 进度安排的常用图形描述方法有 Gantt 图和 PERT 图。Gantt 图不能清晰地描述(18) ;PERT 图可以给出哪些任务完成后才能开始另一些任务。下图所示的PERT图中,事件6的最晚开始时刻是 (19) 。
(18)A. 每个任务从何时开始 B. 每个任务到何时结束 C. 每个任务的进展情况 D. 各任务之间的依赖关系
(19)A. 0 B. 3 C. 10 D. 11
查看答案
住院糖尿病患者的饮食治疗原则中不妥的是:
A. 每日总热量每公斤体重104~126KJ(25~30KCal)
B. 主食中糖占总热量50%~60%
C. 蛋白质每日每公斤体重lg
D. 热量不足部分用脂肪补充
E. 不宜用含粗纤维素多的食物
听力原文:W: The presentation made by Professor Lee was too complicated to understand.
M: Well, I think he didn't speak slowly enough for us to take notes.
Q: What does the man mean?
(5)
A. The professor's presentation was too complicated.
B. The professor's lecture notes were too complicated.
C. The professor spoke too fast.
D. The woman is a fool.
粒组是将大小相近的土粒合并为组。()
A. 正确
B. 错误