工业锅炉中以对流传热为主的受热面有()等。

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问题:

工业锅炉中以对流传热为主的受热面有()等。

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题型:填空题

在150℃时,(NH4)2CO3分解的方程式为:(NH4)2CO32NH3↑+H2O↑+CO2↑,若完全分解,产生的气态混合物的密度是相同条件下氢气密度的[        ]

A.96倍

B.48倍

C.12倍

D.10倍

题型:填空题

电焊接头处的钢筋折弯,不得大于()度,否则切除重焊。,

A.8

B.6

C.4

D.2

题型:填空题

下列几个因素中影响内含报酬率的有( )。

A.银行存款利率

B.投资项目有效年限

C.初始投资金额

D.企业最低投资收益率

题型:填空题

The communication management plan determines the information and communications needs of the stakeholders. In the following statements related to communication management plan.  (     ) is false.

 

A. The communication management plan is contained in or is a subsidiary plan of, the project management plan.

B. The  communication  management  plan  can  be  formal  or informal, highly detailed or broadly framed, and based on the needs of the project.

C. The  communication  manamgement  plan  organize  and summarize the information gathered,and present the results of any analysis as comparedthe performance measurement baseline.

D. The communication management plan can include guidelines project status meetings,project team meetings,e-meetines,and e-mail

题型:填空题

拟定远洋航线时主要应考虑哪些因素?

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