下列哪些症状最有助于葡萄胎的诊断A．闭经及 * * 不规则出血 B．闭经、 * * 出血及腹痛

It was along the Mississippi River _____ Mark Twain spent much of his childhood. [ ]

A. how

B. which

C. that

D. where

电子数据处理的目的就是对所收集的信息进行分析预测，为科学决策提供依据。（）

Not so long ago I found myself in characteristically pugnacious discussion with a senior human rights figure. The issue was privacy. Her view was that there was an innate and largely unchanging human need for privacy. My view was that privacy was a culturally determined concept. Think of those open multiseated Roman latrines in Pompeii, and imagine having one installed at work. The specific point was whether there was a generational difference in attitudes towards privacy, partly as a consequence of interact social networking. I thought that there was. As a teenager I told my parents absolutely nothing and the world little more. Some girls of that era might be photographed bare-breasted at a rock festival, but, on the whole, once we left through the front door, we disappeared from sight.

My children--Generation Y, rather than the Generation X-ers who make most of the current fuss about privacy--seem unworried by their mother’s capacity to track them and their social lives through Facebook. In fact, they seem unworried by anybody’s capacity to see what they’re up to-until, of course, it goes wrong. They seem to want to be in sight, and much effort goes into creating the public identity that they want others to see. Facebook now acts as a vast market place for ideas, preferences, suggestions and actings-out, extending far beyond the capacity of conventional institutions to influence. And the privacy issues it raises have little to do with the conventional obsessions such as CCTV or government data-mining.

At a conference at the weekend I heard that some US colleges have taken to looking at the Facebook sites of applicants before they think to alter them before an interview. This may turn out to be apocryphal, but such a thing certainly could be done. In this era of supplementing exam grades with personal statements and character assessments, what could be more useful than an unguarded record of a student’s true enthusiasms My daughter’s college friends, she says, are "pretty chilled" about it. There are the odd occasions when a vinous clinch is snapped on a mobile phone and makes the social rounds to the embarrassment of the clinchers, but what ever will be will be.

An EU survey two years ago suggested that this is the pattern more generally. The researchers discovered what seemed to be a paradox: although half of their young respondents were confident in their own ability to protect their online privacy, only a fifth thought it a practical idea to give users in general "more control over their own identity data". Meanwhile, their elders try to get them concerned about issues such as internet data harvesting by private companies. A US news report last week concerned the work done to create "privacy nudges "--software that reminds users at certain moments that the information they are about to divulge has implications for privacy.

I have to say, as someone who often elects to receive online mailshots from companies operating in areas in which I’m interested, that this seems to me to miss the main problem. As long as you have the right to say "no" to a company’s blandishments, I don’t see a huge problem. That’s why the now notorious Italian bullying video seems much more relevant. At the end of last week three Google employees were sentenced in absentia for breaching the privacy of a handicapped boy, whose horrid treatment at the hands of his Turin schoolmates had been posted on Google Video. This clip spent several months in circulation before being taken down. Almost everyone agrees that the sentence was wrong, perverse and a kick in the teeth for free Speech, with implications that could (but won’t) undermine the internet. And they are quite right. But look at it, for a moment, from the point of view of the boy’s parent, or the boy himself. They must have felt powerless and damage& So how much control or ownership can one have over one’s own image and reputation The second great question, then, raised with regard to the net is what might be called "reputation management" What is it that you want people to know about you, and can you have control over it

Last weekend I was alerted to two new phenomena, both of which caused me to miss a heartbeat. The first was the possibility of using a program, or employing someone, to "suicide" you online. Recently a company in Rotterdam used its Facebook presence to advertise its "web 2. 0 suicide machine", which would act as "a digital Dr Kevorkian [and] delete your online presence" not just from your own sites but from everyone else’s--leaving just a few "last words". Unfortunately Facebook chucked the suicide machine off its premises, so it then suicided itself, ending with the words "no flowers, no speeches". As a journalist I was horrified by the implications of online suiciding. In the first place it means the erasure of documentary history. And second it raises the possibility of routine doctoring of material on the internet to render it more palatable to the offended.

The second phenomenon was worse. It was that some people, many perhaps, might seek to undermine any informational authority on the web by flooding it with false information, thus obliquely protecting their own identities. As an occasional target of such misinformation, playfully or maliciously, I know it can play merry hell With everyone’s sense of reality. In other words it seemed to me that there was a threat much worse than that to privacy, and that was of privacy-induced attempts to bend or erase the truth that is essential to the value of the internet. Lack of privacy may be uncomfortable. Lack of truth is fatal.

The word "doctoring" in the expression "the possibility of routine doctoring of material on the internet" (park 14) can be replaced by().

A. deceptive altering

B. partial eliminating

C. complete rewriting

D. medical treating

2001～2008年，社会投资用于地质勘察投资的资金平均每年约增加（）亿元。

A．52.1

B．59.5

C．72.9

D．416.8

根据以下信息，回答第13题至第14题。

一家专业组织计划在不同的城市进行一系列为期一天的再教育项目。预计成本如下：

促销广告成本 每个项目1250美元

指导者费用 每个项目750美元

说明材料 每个参加者12美元

宾馆费用：

房屋租金和启动费用 每个项目400美元

欧式早餐 每个参加者10美元

中餐 每个参加者25美元

茶点 每个参加者8美元

宾馆要求在项目进行75天前有200美元不可返还的房间预付款。与此同时，促销广告也在编制中，并将邮寄给潜在参加者。同时预先支付指导者20%的费用，即使项目失败了，指导者仍将得到这20%的费用，而且在项目结束后收取剩余费用。剩余的宾馆租金、说明材料费用将在项目结束时支付。每个项目最多容纳100个人，但根据过去的经验，每个项目平均有80个人参加。

计算这个为期1天的再教育项目成本的方程为（）。

A．79美元乘以参加者的数量

B．85美元乘以参加者的数量

C．800美元加上(55美元乘以参加者的数量)

D．2400美元加上(55美元乘以参加者的数量)