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问题 单项选择题

下表为某建筑地基中细粒土层的部分物理性质指标，据此请对该层土进行定名和状态描述，并指出下列哪一选项是正确的（） 密度ρ(g/cm3) 相对密度ds(比重) 含水率w(%) 液限wL(%) 塑限wP(%) 1.95 2.70 23 21 12

A．粉质黏土，流塑

B．粉质黏土，硬塑

C．粉土，稍湿，中密

D．粉土，湿，密实

答案

参考答案：D

解析：

根据《土工试验方法标准》(GB 50123—1999)、《岩土工程勘察规范》3.3.4条、3.3.10条及物理指标间换算公式

塑性指数 ΙP=wL-wP=21-12=9

液性指数

ΙP=9≤10，土性为粉土

干密度

孔隙比

e=0.7＜0.75，为密实

w=23%，20≤w≤30，湿度为湿，该土为湿、密实的粉土。

单项选择题

现金作为流动资产，其特点是（）。

A．流动性强，盈利性强

B．流动性强，盈利性差

C．流动性差，盈利性强

D．流动性差，盈利性差
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单项选择题

It is difficult to imagine what life would be like without memory. The meanings of thousands of everyday perceptions, the bases (51) the decisions we make, an d the roots of our habits and skills are to be (52) in our past experiences, which are brought into the present (53) memory.

Memory can be defined as the capacity to keep (54) available for later use. It includes not only "remembering" things like arithmetic or historical facts, but also any change in the way an animal typically behaves. Memory is (55) when a rat gives up eating grain because he has sniffed something suspicious in the grain pile. Memory is also involved when a six-year-old child learns to swing a baseball bat.

Memory (56) not only in humans and animals but also in some physical objects and machines. Computers, for example, contain devices for storing data for later use. It is interesting to compare the memory-storage capacity of a computer (57) that of a human being. The instant-access memory of a large computer may hold up to 100000 "words" —ready for (58) use. An average American teenager probably recognizes the meanings of about 100000 words of English. However, this is but a fraction of the total (59) of information which the teenager has stored. Consider, for example, the number of facts and places that the teenager can recognize on sight. The use of words is the basis of the advanced problem-solving intelligence of human beings. A large part of a person’s memory is in terms of words and (60) of words.

52（）。

A. kept

B. found

C. sought

D. stored
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