问题 单项选择题

混凝土生产系统的规模应满足质量、品种、出机口温度和浇筑强度的要求,单位小时生产能力可按月高峰强度计算,月有效生产时间可按500h计,不均匀系数按( )考虑,并按充分发挥浇筑设备的能力校核。

A.1.2
B.1.5
C.1.8
D.2.0

答案

参考答案:B

解析: 根据《水电水利工程混凝土生产系统设计导则》(DL/T5.86—1999)第5.2.2条,混凝土生产系统的规模应满足浇筑高峰时段的要求,按高峰月强度计算需要的小时生产能力,月有效生产时间可按500小时计,不均匀系数按1.5考虑,并按充分发挥浇筑设备的能力校核。

多项选择题
单项选择题

The amazing success of humans as a (91) is the result of the evolutionary development of our brains which has led, among other things, to tool-using, tool-making, the (92) to solve problems by logical reasoning, thoughtful cooperation, and language. One of the most striking ways in which chimpanzees biologically (93) humans (94) in structure of their brains. The chimpanzee, with the capacity for (95) reasoning, (96) a type of intelligence more like that of humans than (97) any other mammal living today. The brain of the modern chimpanzee is probably not too dissimilar (98) the brain that so many millions of years ago (99) the behavior of the first ape man.
For a long time, the fact that prehistoric people made (100) was considered to be one of the major (101) distinguishing them from other creatures. (102) pointed out earlier, I have watched chimpanzees (103) grass stems in order to use them to probe for termites. It is tree that the chimpanzee does not (104) tools to "a regular and set pattern"—but then, (105) people, before their development of stone tools, undoubtedly poked around (106) sticks, and straws, at which stage it seems (107) , that they made tools to a set pattern either.
It is because of the close (108) in most people’s minds of tools with humans (109) special attention has always been focused upon any animal able to use an object as a tool: but it is important to realize that this ability, on its own, does not necessarily indicate any special intelligence in the creature (110) .

A.which

B.that

C.what

D.where