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【多选题】
下列关于成本的说法中，不正确的有（ ）。A.
固定成本是指在特定的产量范围内不受产量变动影响，一定期间的总额保持固定不变的成本
B.
变化率递减的非线性成本的总额随产量的增加而减少
C.
在一定产量范围内总额保持稳定，超过特定产量则开始随产量成比例增长的成本叫半变动成本
D.
对于阶梯成本，可根据产量变动范围的大小，分别归属于固定成本或变动成本
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【单选题】A fierce fire broke out there last night. ______, most of the building was burnt to the ground.
A.
As a matter a fact
B.
As result
C.
As consequence
D.
Consequently
【单选题】设有以下说明语句： 则下面的叙述中不正确的是（ ）。
A.
struct结构体类型的关键字
B.
example是结构体类型名
C.
x，y，z都是结构体成员名
D.
struet ex是结构体类型名
【简答题】From
the layout, which building is in the northern most of the Temple of Heaven? ( )A. the
Imperial Vault of Heave B. the
Circular Mound Altar C. the
Hall of Prayer for Good Harvest D. the
Main Hall o...
【单选题】系统生命曲线婴儿期的特点是 ( )
A.
值和潜力显现﹐大量的人､物､财力的投入﹐效率和性能得到提高﹐吸引更多的投资﹐系统高速发展
B.
价效率低﹐可靠性差﹐缺乏人､物力的投入﹐系统发展缓慢
C.
系统日趋完善﹐性能水平达到最佳﹐利润最大并有下降趋势﹐研究成果水平较低
D.
技朮达极限﹐很难有新突破﹐将被新的技朮系统所替代
【单选题】设有结构体说明 struct ex { int x; float y; char z;} example; 以下叙述中错误的是:
A.
struct是结构体类型的关键字
B.
example是结构体类型名
C.
x,y,z都是结构体成员名
D.
struct ex是结构体类型
【单选题】The new building in our school is for us students. In spite of the noise most of the day, we still feel very happy.
A.
built
B.
has been built
C.
being built
D.
to be built
【单选题】Which is the following excerpt most likely taken from? The hills across the valley of the Ebrol were long and white. On this side there was no shade and no trees and the station was between two lines ...
A.
a short story
B.
a news report
C.
a geography textbook
D.
a casual conversation
【单选题】系统生命曲线婴儿期的特点是( )
A.
大量的人 力 物 力 财力的投入﹐效率和性能得到提高﹐吸引更多 的投资﹐系统高速发展。
B.
价效率低﹐可靠性差﹐缺乏人 力 物力的投入﹐系统发展缓慢。
C.
. 系统日趋完善﹐性能水平达到最佳﹐利润最大并有下降趋势，研究成果水平较低。
D.
技术达极限﹐很难有新突破﹐将被新的技术系统所替代。
【单选题】The building crane, which has become the most striking feature of the urban landscape in Switzerland, is beginning to alter the mountain landscape as well. Districts of the Swiss Alps, which up to now...
A.
the construction of hotels, ski-lifts, etc.
B.
parts of planned, developing regions
C.
the districts of the Swiss Alps
D.
the machine with a long arm used for lifting and moving heavy weights
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