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【判断题】
混凝土配合比设计中的三个重要参数是：水灰比、用水量、和砂率。()A.
正确
B.
错误
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举一反三
【单选题】The chairman of the company said that new techniques had _________ improved their production efficiency.
A.
violently
B.
severely
C.
extremely
D.
radically
【单选题】We have no figures on the number of workers employed in the ______ stages of iron production.
A.
various
B.
variable
C.
varied
D.
variant
【单选题】According to the passage, investments in service are comparable to investments in production and distribution in terms of the______
A.
tangibility of the benefits that they tend to confer
B.
increased revenues that they ultimately produce
C.
basis on which they need to be weighed
D.
insufficient analysis that managers devote to them
E.
degree of competitive advantage that they are likely to provide
【单选题】All of the following are true of the outwork system EXCEPT
A.
It involved stages of production.
B.
It was more efficient than the systems used before 1790.
C.
It made many employers less powerful than they had been before.
D.
It did not necessarily involve any technological improvements.
【简答题】It can be inferred from the information contained in the passage that Walt Disney Productions ______ .
【单选题】According to the passage, investments in service are comparable to investments in production and distribution in terms of the ______.
A.
tangibility of the benefits that they tend to confer.
B.
increased revenues that they ultimately produce.
C.
basis on which they need to be weighed.
D.
insufficient analysis that managers devote to them.
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