一般情况下，获利水平低于平均利润率的资本是A．产业资本 B．商业资本 C．银行资本

纳税人因房屋大修导致累计停用半年以上的，在房屋大修理期间免征房产税。（）

关于保证，下列说法正确的是（）。

A.银行与借款人协商变更借款合同时，可不告知保证人

B.未经保证人同意，展期后的贷款保证人可不承担保证责任

C.事前如有约定的，银行对借款人有关合同的修改可不通知保证人

D.银行对借款合同的修改都应取得保证人口头或书面意见

完全性房宣传导阻滞伴阵发性室性心动过速，首选的治疗方式为

A．利多卡因

B．阿托品

C．心室起搏

D．电复律

E．心房起搏

Anna is the executive responsible for information technology in –OAO- Target. Her senior colleagues asked her to participate in confidential discussions regarding the compatibility of the company’s information systems with those of a competitor. Representatives of both companies attended the meeting, and from the discussions that took place itwas obvious that the companies had entered into merger negotiations. Anna then purchased shares in both companies in anticipation of making a future capital gain.Nikita inherited a large sum of money from his father. He invested this in the shares of his employer, which is a company listed on the stock exchange, bidding up its share price. Immediately after doing so, he sold the shares for a large profit.Required:Discuss the extent to which the actions of Anna and Nikita were legal and ethical. (10 marks)

拉深件表面拉毛的原因以及解决措施？