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【单选题】
所谓确定条件下的决策，是指在这种条件下，只存在()A.
一种自然状态
B.
两种自然状态
C.
三种或三种以上自然状态
D.
无穷多种自然状态
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举一反三
【单选题】What is the main idea of paragraph 5 ?
A.
We should have more testing alternatives other than standardized ones.
B.
The effectiveness of test coaching varies from student to student.
C.
The wealthy families have the right for better education.
D.
The growing influence of test preparation is also a concern for some.
【简答题】People in the UK spend their free time in different ways. They usually use it to relax. They spend a lot of their free time at home. The most popular activity is watching TV. People in the UK watch TV...
【单选题】What's the main idea that author want to convey in this passage?
A.
There is a waste at home
B.
To waste is a serious problem
C.
Families will run out of energy.
D.
We should conserve energy.
【判断题】It can be predicted that in the foreseeable future the UK will not adopt the Euro currency.
A.
正确
B.
错误
【简答题】Problems in the IT industry In the information technology industry, it is widely acknowledged that how well IT departments of the future can fulfil their business goals will depend not on the regular ...
【简答题】Problems in the IT industry In the information technology industry, it is widely acknowledged that how well IT departments of the future can fulfil their business goals will depend not on the regular ...
【单选题】绝热床反应器由于没有径向床壁传热,一般可以当作平推流处理,只考虑流体流动方向上有温度和浓度的变化,因此一般可用( )来计算。
A.
平推流模型
B.
拟均相二维模型
C.
拟均相一维模型
D.
轴向扩散模型
【简答题】绝热床反应器由于没有径向床壁传热,一般可以当作平推流处理,只考虑流体 流动方向上有温度和浓度的变化,因此一般可用 模型来计算。
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