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【多选题】
企业制定定额的意义有
A.
可以使成本计划的编制建立在科学的基础之上
B.
为成本核算提供了依据
C.
为成本预测和成本决策提供了标准
D.
为成本控制和成本分析提供了标准
E.
便于控制实际成本支出
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【单选题】In an open lifeboat,the lifeboat compass is usually().
A.
placed in a fixed bracket when being used
B.
clamped to any position convenient for the coxswain to see it
C.
permanently mounted on the lifeboat's centerline
D.
mounted in the center of the boat to eliminate deviation
【单选题】减少混凝土发热量的措施不包括( )
A.
减小水泥用量
B.
采用低热水泥
C.
采用低热微膨胀水泥
D.
采用高流态的混凝土
【单选题】—Dad, I don’t think Oliver the right sort of person for the job. —I see. I’ll go right away and ________.
A.
pay him back
B.
pay him off
C.
put him away
D.
put him off
【单选题】Each open lifeboat carried on a vessel on an international voyage must have().
A.
hand-propelling gear
B.
a davit span with at least 2 lifelines
C.
a mast and a sail
D.
a motor
【单选题】某带权有向图如图3-67所示。 若忽略边上的权,并将其看做AOV网,那么该AOV网的拓扑排序为(1)。若将该图视为AOE网,那么该AOE网的关键路径有(2)条,其长度为(3)。该AOE网的所有关键活动共有(4)个,V5的最早开始时间和最迟开始时间分别是(5)。
A.
V1、V2、V3、V4、V6、V5、V7、V8
B.
V1、V3、V5、V2、V4、V6、V7、V8
C.
V1、V2、V3、V4、V5、V6、V7、V8
D.
V1、V2、V3、V5、V6、V4、V7、V8
【单选题】关键路径是边表示活动的网( AOV 网)中的 ( ) 。
A.
从源点到汇点的最长路径
B.
从源点到汇点的最短路径
C.
最长的回路
D.
最短的回路
【判断题】固井下胶塞是空心结构的
A.
正确
B.
错误
【单选题】The Muster List (“Station Bill”) shows each person’s lifeboat station,duties during abandonment,basic instructions,and().
A.
all emergency signals
B.
instructions for lowering the lifeboats
C.
the time each weekly drill will be held
D.
work schedule
【简答题】What should be done to make sure that medicines are on board each lifeboat?
【单选题】Each year the two friends wrote to each other less and less and eventually their friend-ship__________.
A.
fell out
B.
broke off
C.
cut off
D.
held out
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