[多项选择]Public ______ ______ sell their ______ to the ______ ______, whereas ______ companies ______sell shares to, or ______ ______, the general public. Insert the 10 words below into their correct position in the above passage. can, cannot, companies, from, general, money, private, public, raise, shares

[单项选择]

Public officials and candidates for public office routinely use public opinion polls to keep track of what the people are thinking. An important question is the degree to which these polls should guide leaders in their actions. There are arguments for and against the use of polls as the basis for policy decisions.
Polls can contribute to effective government by keeping political leaders from getting too far out of line with the public’s thinking. In a democratic society, the effectiveness of a public policy often dep. ends on the extent of its public support. When a policy is contrary to the public’s desires, people may choose to disregard or undermine it, thus making it counterproductive or inefficient. Further, when government pursues a course of action with which a large proportion of the public disagrees, it risks a loss of public confidence, which can have a negative effect on its ability to lead. The Reagan administration, flying high from 1981 to 1985 ,
A. Reagan lost a lot of support late in his administration
B. leaders should learn to win support for their policies
C. it is up to the leaders to determine the value of public opinion
D. public opinion polls are very important to a democratic society

[单项选择]请阅读下面程序
public class ExampleStringBuffer
public static void main (String[]args)
StringBuffer sb=new StringBuffer("test");
System.out.printIn("buffer="+sb);
System, out.printIn("length="+sb.length（　）);


程序运行结果中在“length=”后输出的值是______。
A. 10
B. 4
C. 20
D. 30

[单项选择] Public Relations 　　Public relations is a broad set of planned communications about the company, including publicity releases, designed to promote goodwill and a favorable image. 　　Publicity then is part of public relations when it is initiated by the firm, usually in the (51) of press releases or press conferences. Since public relations involves communications with stockholders, financial analysts, government officials, and other noncustomer groups, it is usually (52) outside the marketing department, perhaps as a staff department or outside consulting firm reporting to top management. This organizational placement can be a (53) because the public relations department or consultant will likely not be in line with marketing efforts. Poor communication and no coordination can be the (54). Although the basic purpose of public relations is to provide positive influence (55) the public image, this influence generally may be less than (56) provided by t
A. side
B. part
C. hand
D. area