计算： 2x+3y-[4x-（3x-y）]。

“荷尽已无擎雨盖，菊残犹有傲霜枝”。下列诗句中与此说法所包含的哲理相同的是

A．时人不识凌云木，直待凌云始道高

B．春色满园关不住，一枝红杏出墙来

C．泾溪石险人兢慎，终岁不闻倾覆人

D．竹怜新雨后，山爱夕阳时

新校长管得特别严，所谓准军事化管理。比如，不准学生随便出校园，不许带手机，不许初三男女生过多交往，作业量特别大，自习和周六也全部上课，甚至默许对调皮捣蛋的学生进行“出格”的体罚。校长说：“能出成绩的办法，就是好办法!”很快．学校的教学成绩有了很大提高，知名度也越来越大，成为当地最受欢迎的学校，但校长的这些做法却引起了争议。你如何看待校长的做法?(5分)

泵站工程的基本组成部分，包括( )。

A．泵房

B．进、出水管道

C．电气设备

D．变电站

E．进、出水建筑物

Britain’s undeclared general election campaign has already seen the politicians trading numbers as boxers trade punches. There is nothing new in such statistical slanging matches(相互谩骂)What is new is an underestimation of worry about what has been happening to official statistics under the Labour government.

One of the most important figures for Gordon Brown when presenting his pre-election budget on March 16th was the current-budget balance. This is the gap between current revenues and current spending. It matters to the chancellor of the exchequer(财政部长) because he is committed to meeting his own "golden rule" of borrowing only to invest, so he has to ensure that the current budget is in balance or surplus over the economic cycle.

Mr. Brown told MPs that he would meet the golden rule for the current cycle with ￡ 6 billion ($11.4 billion) to spare—a respectable-sounding margin, though much less than in the past. However, the margin would have been halved but for an obscure technical change announced in February by the Office for National Statistics to the figures for road maintenance of major highways. The ONS said that the revision was necessary because it had been double-counting this spending within the current budget.

If this were an isolated incident, then it might be disregarded. But it is not the first time that the ONS has made decisions that appear rather convenient for the government. Mr. Brown aims to meet another fiscal rule, namely to keep public net debt below 40% of GDP, again over the economic cycle. At present he is meeting it but his comfort room would be reduced if the S 21 billion borrowings of Network Rail were included as part of public debt. They are not thanks to a controversial decision by the ONS to classify the rail-infrastructure corporation within the private sector, even though the National Audit Office, Parliament’s watchdog, said its borrowings were in fact government liabilities.

This makes it particularly worrying that the official figures can show one thing, whereas the public experiences another. One of the highest-profile targets for the NHS is that no patient should spend more than four hours in a hospital accident and emergency department. Government figures show that by mid-2004, the target was being met for 9696 of patients. But according to a survey of 55,000 patients by the Healthcare Commission, an independent body, only 77% of patients said they stayed no more than four hours in A&E.

One way to help restore public confidence in official statistics would be to make the ONS independent, as the Conservatives and Liberal Democrats have suggested. Another would be for the National Audit Office to assess how the government has been performing against targets, as the Public Administration Committee has recommended.

It can be inferred from the first paragraph that（）

A. the British politicians are often compared to boxers by the people

B. it is a common practice that the government plays with figures

C.people often overestimate the credibility of official statistics

D. the Labor government usually underestimate its official figures

出现火警时，应该如何使用灭火手柄？