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【单选题】
降低离体神经纤维浸浴液中的 Na + 浓度,则神经纤维动作电位的值将A.
增大
B.
减小
C.
不变
D.
先增大后减小
E.
先减小后增大
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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
【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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