张某2009年5月取得的下列收入中，不免征个人所得税的有( )。A．半年期储蓄利息

下列程序中，要求输出一个特定文件(这里是ex1.java)的相关信息，包括文件的名字，相对路径以及文件的长度。请将程序补充完整。
程序运行结果如下：
name:ex1.java
path:ex1.java
length:299
注意：不改动程序结构，不得增行或删行。
import java.io.*;
public class ex1

public static void main(String[] args)

File filel=new File("ex1.java");
System.out println("name:"+file1.______);
System.out println("path:"+file1.______);
System.out println("length:"+file1.______);

按照美国的判例法，在产品责任诉讼中，对原告最为有利的诉讼依据是（）

A、疏忽

B、违反担保

C、严格责任

D、市场份额

Johann Gutenberg, who worked as a goldsmith (金匠), took what had already been discovered, and created a small invention that changed history. He created a machine that allowed him to move small blocks of letters in such a way that written material could be printed and mass-produced. Few people could read before Guttenberg made the invention, but once books became less expensive, more Europeans could read and write.

Block printing existed long before Gutenberg. The Chinese had been using wood blocks to print books as early as 868, but a new set of woodcuts (木刻印版) had to be made for each book. Producing one book was not easy; producing all kinds of books was more difficult.

Writing ink dates from about 2500 BC in Egypt and China. Gutenberg used an oil-based printing ink that would last longer than other inks used in his time. We don’t know much about Gutenberg because he was not famous during his lifetime. He was born in Germany about 1400. In 1448, Gutenberg developed signatures for each number, letter, and punctuation mark (标点符号). He then built the molds (模型) to hold the signatures in place. Gutenberg published the first mass-produced book: a 1,282 page Bible. To this day, more copies of the Bible have been printed than any other book.

Copies of Gutenberg’s invention spread throughout Europe, but the German goldsmith did not get rich from his invention. Some officials denounced the invention of printing because they feared that it would spread bad ideas. By 1500 there were 1,700 printing presses in Europe. The presses had already produced about 20 million volumes (册) of 40,000 different books.

小题1:What happened after Johann Gutenberg’s invention?

A．People could afford to read books.

B．People became interested in inventing.

C．It was still difficult to print all kinds of books.

D．Punctuation mark began to be used in printing.小题2: Compared with block printing in China, Johann Gutenberg’s method _____.

A．was difficult to run

B．needed harder paper

C．used a new kind of ink

D．was put into use earlier小题3:The underlined word “denounced” in the last paragraph means _____.

A．fought against

B．accepted

C．laughed at

D．supported小题4:What is the best title for the text?

A．A famous 1,282 page Bible

B．The life of a famous inventor

C．An invention that changed history

D．The development of printing

技术效果与经济效果的矛盾性是什么？

下列关于艾滋病病毒的母婴传播的描述不正确的是（）。

A.母亲是艾滋病病毒的感染者，可能在怀孕、分娩时使她的孩子受到感染

B.胎儿在子宫内不会感染艾滋病病毒

C.母亲分娩时，胎儿大量吸入母亲的血液、分泌液、羊水等，感染机率很高

D.由母婴垂直传播感染艾滋病病毒的新生儿，出生后大部分会很快发病死亡