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问题 选择题

在一定条件下，将物质的量相同的NO和O2混和，发生如下反应：2NO＋O2＝2NO2，2NO2N2O4，所得混合气体中NO2的体积百分含量为40%，此时，混合气体的平均分子量为[ ]

A．31

B．41.3

C．49.6

D．62

答案

答案：C

问答题

Earl has been employed by Flash Co, for the past 20 years. During that time he has also invested in the company in the form of shares and debentures. Earl owns 5,000 ordinary shares in Flash Co. The shares are of $1 nominal value and are paid up to the extent of 75%. The debentures, to the value of $5,000, are secured by a fixed charge against the land on which Flash Co’s factory is built. In April it was announced that Flash Co was going into immediate insolvent liquidation, owing considerable amounts of money to trade creditors (trade payables). As a result of the suddenness of the decision to liquidate the company, none of the employees received their last month’s wages. In Earl’s case this amounted to $2,000. Required: Advise Earl as to his rights and liabilities in relation to Flash Co in regard to:

(b) his shareholding; (3 marks)
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多项选择题

工程管理的信息资源包括（）。

A.资源类信息

B.组织类信息

C.管理类信息

D.技术类信息

E.经济类信息
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