下列选项中不属于有机磷和氨基甲酸酯类农药及鼠药快速检测的是（） A.表面测定法 B.

“帝裔里的近亲，亦即刘家的叔伯、兄弟、从兄弟等封为王，功臣中之卿相则封为侯。他们的领域和直隶于中央的郡县犬牙相错。”文中的“帝”是指

A．周武王

B．汉高祖

C．汉武帝

D．光武帝

在下列概念中，一定属于描述物质化学变化规律的是

A．汽化

B．液化

C．爆炸

D．缓慢氧化

[说明]
以下程序的功能是计算三角形、矩形和正方形的面积并输出，程序由5个类组成：AreaTest是主类，类Trianlge、Rectangle和Square分别表示三角形、矩形和正方形，抽象类Figure提供了一个计算面积的抽象方法。
[程序]
public class AreaTest
public static void main(String args [])
Figure [] figures= new Triangle (2,3,3) ,new Rectangle (5,8) ,new Square (5) ;
for (int i=0; 1< figures .length; i++)
System. out .println (figures [i] +"area=" +figures [i]. getArea ());



public abstract class Figure
public abstract double getArea() ;

public class Rectangle extends (1)
double height;
double width;
public Rectangle(double height, double width)
this .height=height;
this.width=width;

public String toString ()
return "Rectangle: height= "+height+" , width= "+width+":";

public double getArea ()
return (2) ;

class Square extends (3)
public Square(double width)
(4) ;

public string toString ()
return "Square: width= "+width+" : " ;


class Triangle extends (5)
double la;
double lb;
double lc;
public Triangle(double la,double lb, double lc)
this.la=la; this.lb=lb; this.lc=lc;

public String toString()
return "Triangle : sides= "+la+" , "+lb+" , " +lc+" : " ;

public double getArea ()
double s= (la+lb+lc)/2.0;
return Math. sqrt (s* (s-la) * (s-lb) * (s-lc)) ;

The New York Times announced Wednesday that it intended to charge frequent readers for access to its website, a step being debated across the industry that nearly every major newspaper has so far feared to take.

Starting in early 2011, visitors to NYTimes.com will get a certain number of articles free every month before being asked to pay a standard and fixed fee for unlimited access. Subscribers to the newspaper’s print edition will receive full access to the site.

But executives of The New York Times Company said they could not yet answer fundamental questions about the plan, like how much it would cost or what the limit would be on free reading. They stressed that the amount of free access could change with time, in response to economic conditions and reader demand. Still, publishers fear that money from digital subscriptions would not make up for the resulting loss of audience and advertising income.

NYTimes.com is by far the most popular newspaper site in the country, with more than 17 million readers a month in the United States, according to Nielsen Online, and analysts say it is the leader in advertising income, as well. That may make it better positioned than other general-interest papers to charge—and also gives The Times more to lose if the move produces an opposed result.

The Times Company has been studying the matter for almost a year, searching for common ground between pro-and-anti pay campaigns—a debate mirrored in dozens of media-watching blogs-- and the system will not go into effect until January 2011. Executives said they were not bothered by the possibility of absorbing barbs(挖苦) for moving cautiously.

“There’s no prize for getting it quick,” said Janet L. Robinson, the company’s president and chief executive. “There’s more of a prize for getting it right.”

小题1: What’s the function of the first paragraph?

A．It servers as a comment.

B．It serves as a background

C．It serves as a lead-in

D．It serves as a conclusion.小题2:Which of the following is TRUE according to the passage?

A．Non-paying subscribers will get no access to NYTimes.com.

B．Readers will be charged more to read articles on NYTimes.com.

C．Readers will get more free online articles to log on NYTimes. com more often.

D．Subscribers to the paper’s print edition will also enjoy full access to the site.小题3:Which of the words can best describe The Time Company’s attitude towards its announcement?

A．Unwilling.

B．Serious.

C．Hasty

D．Doubtful小题4: What is the main idea about the passage?

A．The Times to offer free access to its web site.

B．The Times to increase audience to its web site.

C．The Times to attract advertisement to its web site

D．The Times to charge for frequent access to its web site.

法定公积金由专门的用途，一般包括哪三个方面的用途：（）

A.弥补亏损

B.扩大公司生产经营

C.增加公司注册资本

D.增加公司利润