下列关于能量变化的说法中错误的是 A．反应物的总能量高于生成物的总能量时，发生放

The committee charged with recommending a compensation package for members of a firm’s board of directors has recommended that in addition to compensation of $10000 for each board meeting attended, board members will be able to use one of the firm’s corporate jets up to twice each year and will receive a finder’s fee of 0. 1% if they identify an acquisition target that the firm acquires while the member is still on the board. Are these policies consistent with good corporate governance practices Use of Jet Finder’s fees（）①A. Yes Yes ②B. No Yes ③C. No No

A. ①

B. ②

C. ③

个人所得税中的工资、薪金所得适用的税率是( )。

A．20%的比例税率

B．10%的比例税率

C．5%～35%的五级超额累进税率

D．5%～45%的九级超额累进税率

A、B两企业利用广告进行竞争。若A、B两企业都做广告，在未来销售中，A企业可以获得20万元利润，B企业可以获得8万元利润；若A企业做广告，B企业不做广告，A企业可以获得25万元利润，B企业可以获得2万元利润；若A企业不做广告，B企业做广告，A企业可以获得10万元利润，B企业可以获得12万元利润；若A、B两企业都不做广告，A企业可以获得30万元利润，B企业可以获得6万元利润。
(1)画出A、B两企业的支付矩阵；
(2)求纳什均衡(Nash equmbrium)。

MRI对（）（）的显示不如X线和CT。