海关在行使下列哪种权力时需经直属海关关长或者其授权的隶属海关关长批准： A．在调查走

设f(x,y)与

均为可微函数，且

，已知(x₀，y₀)是f(x,y)在约束条件

下的一个极值点，下列选项正确的是
(A) 若f′_x(x₀，y₀)=0，则 f′_y(x₀，y₀)=0．
(B) 若f′_x(x₀，y₀)=0，则f′_y(x₀，y₀)≠0．
(C) 若f′_x(x₀，y₀)≠0，则f′_y(x₀，y₀)=0．
(D) 若f′_x(x₀，y₀)≠0，则f′_y(x₀，y₀)≠0．

短文改错（共10小题；每小题1分，满分10分）

此题要求改正所给短文中的错误。对标有题号的每一行做出判断：如无错误，在该行右边横线上画一个勾（ √ ）；如有错误（每行只有一个错误），则按下列情况改正：

此行多一个词：把多余的词用斜线（＼）划掉，在该行右边横线上写出该词，并也用斜线划掉。

   此行缺一个词：在缺词处加一个漏字符号（  ），在该行右边的横线上写出该加的词。

此行错一个词：在错的词下划一横线，在该行右边横线上写出改正后的词。

Born to be the basketball player, Kobe Bryant                                               81. __________

showed his shooting talent in an early age. He has always                              82. __________

occupied with proving his skills on the court and improving                           83. __________

himself. Having enjoyed a successfully high school basketball                        84. __________

career, Kobe went straight into the NBA after graduated. So                           85. __________

far, Kobe has led the Lakers to four NBA championships.                              86. __________

Thus, he is never content with his past achievements. He                                87. __________

is famous for getting his teammates stay up late practising.                                   88. __________

When he learned a new move, he asks his teammates to practise                     89. __________

it with him after it is perfect. “When you win, you have to                                   90. __________

constantly look for ways to get better.” Kobe said.

毡房是我国哪个少数民族的传统民居？（）

=______．

以下( )行为符合银行业从业人员职业操守有关信息披露的规定。

A．某银行代理销售一只基金产品，该行销售人员为了利用该银行的知名度实现销售目标，在介绍产品时没有提到最终责任承担者，并使得消费者误以为该银行是风险承担者

B．在向普通群众介绍产品合约的时候，对产品性质、法律关系含糊其辞

C．银行工作人员向消费者详细介绍该行代理的产品的性质、风险、最终责任承担人以及该行的责任与义务

D．银行职员在介绍银行所代理产品的时候，利用银行的声誉对所代理产品进行合约以外的承诺