关于标准差，说法不正确的是（）。 A.反映全部观察值的离散程度 B.度量了一组数据偏

一桶米酒倒出40%后，又倒出16千克，正好是一桶米酒的一半，这桶米酒原来有多少千克？

患者男，65岁，原因不明腹痛，不向肩背部放射，体检发现中上腹直径4cm肿瘤，TBil15mmol/L，CA19-980U/L。平扫CT发现胰头局部低密度肿块，胰管扩张最宽处为5mm，胰管内钙化；增强CT中肿瘤中央部位的强化程度明显高于周围胰腺组织，初步考虑胰腺导管内 * * 状黏液性肿瘤（IPMN）。

典型的IPMN，ERCP表现是（）。

A.可以观察到缩小的十二指肠 * * ，可观察到黏液从 * * 中排出

B.可以观察到扩大的十二指肠 * * ，可观察到黏液从 * * 中排出

C.无法观察到扩大的十二指肠 * * ，可观察到黏液从 * * 中排出

D.十二指肠溃疡

E.十二指肠梗阻

下列内部类的正确用途是( )。
btnn.addActionListener(new//注册监听器
ActienListener()
public void actionPerformed(ActionEvent event)
String s=input．getText()；
output.setText("Hello"+s+"，Welcome You!")；

)；

A．用于访问外部类的数据

B．用于进行事件处理

C．隐藏起来不被同一包中的其他类所见

D．生成事件适配器

It’s high time someone spoke up for today’s college students.  They’re probably the most hardworking, ambitious people in America and their problems are not properly appreciated.

People like the Secretary of Education simply don’t know what they’re talking about when they knock students.  Nor do those who complain about falling academic standards.

The vast majority of the nation’s 12 million students are struggling to pay for their educations.  They are part of the invisible workforce.  Many hold down full-time jobs.  They’re frying hamburgers, photographing weddings, working in construction, and waiting on tables.  The fact that they even show up for classes is a wonderful event.

The financial situation of most students explains a lot about what is happening in schools.  Why are the traditional courses so unpopular?  Why are students flocking to accounting and computer science and any professional programs that seem to lead to careers?

Answer: Today’s working student has been forced into a kind of premature matter-of-fact way of viewing things.  Romance is gone.  The notion of transforming one’s self through study alone has disappeared.  Today’s students seek freedom from manual labor, and the status conferred by a good job.

There are other consequences.  Today’s students don’t have much time or energy to be devoted, and carry out independent research or even do serious homework.  That’s the secret behind falling academic standards.  Students have become consumers.  They want grades and certifications.  Their professors can’t be expected to give a grade of failure to students who are clearly tired from the effort to pay their bills.

There’s a lot wrong with this situation.  It’s twisting the definition of education out of shape.  Worse, it’s creating a generation that is totally unpleasant.  The brightest students turn out to be yuppies (雅皮士).  The vast majority are, at least, good-natured semi-literates.

The time has run out for philosophical debates about fixed courses of study.  What this country needs is someone to stand up and say that being a full-time student during one’s formative years is an honorable calling worthy of support.  If families can’t or won’t give it to their children, then the government should.

小题1:The author’s purpose in writing this article is to __________.

A．awaken the whole society to the problems today’s college students face

B．warn Americans that academic standards are falling

C．advise college students to study hard

D．provide a suggestion that only full-time students be enrolled小题2:The most suitable word to describe the author’s feelings about today’s college students  is _________.

A．criticize

B．sympathize

C．complain

D．urge小题3:Which of the following cannot be learned from the passage?

A．Many students are often absent from classes.

B．Traditional courses are not popular.

C．Students commit crimes with computers.

D．Students don’t devote much time and energy to their homework.小题4:By saying “Romance is gone” in paragraph 5, the author means ____________.

A．today’s students do not believe in love stories any more

B．today’s students become more practical in dealing with things

C．students think there is no affection any more and break up with their lovers

D．today’s students hold matter-of-fact opinions on love小题5:Which of the following suggestions will the author not agree with?

A．We should encourage students to give up full-time jobs.

B．Families should offer their children more help financially.

C．We should stand up and say something for today’s college students.

D．We should make more strict regulations to force students to study hard.

办税服务厅服务质量规范包括（）。

A、对有特殊需要的服务对象，要主动上前给予帮助；

B、在服务过程中发生工作差错，应立即向纳税人致歉和纠正错误；

C、应熟练掌握岗位技能，办理涉税事项准确、快捷；

D、接待纳税人时，不得从事与接待纳税人无关的事；使用文明礼貌语言，营造和谐氛围，树立良好形象；