以下关于人性的幸福说法错误的是（） A.它来源于痛苦 B.它是对人性欲望的满足 C.

对于征信等级为A、B级的农业银行个人贷款客户，贷款额100万元以上的可发（）贷记卡。

A.普卡

B.金卡

C.白金卡

D.钻石卡

资产配置策略中，属于消极型长期再平衡资产配置策略的是( )。

A．恒定混合策略

B．投资组合保险策略

C．买入并持有策略

D．动态资产配置策略

In 2000, Alfred and two friends formed a bicycle manufacturing company called Bikes (Pty) Ltd. The main objects were stated to be:(1) To manufacture and retail bicycles;(2) To borrow money.(3) To support retired employees and their dependants financially.At the end of the main objects clause, it was stated that all clauses are to be read independently of the others.Initially, the company did well but as competition grew, it faced increasing difficulties to sell its bikes. It was decided to modify the factory and use it to manufacture paints and pigments. Initially, the manufacturing was to be done by another company and the paints and pigments, supplied in big vats, were to be packed by Bikes (Pty) Ltd in smaller tins for sale in the retail market. Bikes (Pty) Ltd did not alter its memorandum of association. Alfred then entered into the following contracts on behalf of the company as a managing director:(a) The purchase of paints and pigments in vats from Bright Chemicals;(b) The purchase of machinery to manufacture paints and pigments from Best Manufacturers;(c) A loan of R50,000 from New Bank Ltd to finance the new venture. This loan was paid into Bikes (Pty) Ltd’s bank account which had a credit balance of R5,000;(d) A payment of R5,000 to Hope, the widow of the retired factory supervisor, who was in financial difficulties.Required:Discuss the validity of these contracts under company law. (10 marks)

黑体发射出的总辐射与该物体的绝对温度的4次方成正比。这是热辐射的基本定律之一，称为（）。

A、斯蒂芬－波尔兹曼定律

B、普朗克第一定律

C、基尔荷夫定律

D、维恩位移定律

低合金高强度结构钢适用于受（）中

A.大跨度和大柱网结构

B.大跨度和静荷载结构

C.小跨度和动荷载结构

D.小跨度和静荷载结构