According to the conversation, in the chemical fertilizer market, the demand the supply

A.Labeling pictures according to their contents.

B.Sequencing the pictures according to the story.

C.Matching the pictures with the headings.

D.Commenting on the pictures.

According to the passage, what attracts man's greater attention？

A. Fly ash.

B. The construction of dams, bricks, and roads.

C. Extracting aluminum, silicon, and magnetic from ash.

D. The available technology.

line of Wal mart clothing was exposed as the work of underpaid laborers in New York City's Chinatown, the Department of Labor and the White House teamed up to condemn such practices. With much fanfare, President Clinton's administration launched the "No Sweat" campaign, which pressured retailers and manufacturers to submit to periodic independent inspection of their workplace conditions.

This campaign urged manufacturers to sign the Workplace Code of Con duct, a promise to serf-regulate that has since been adopted by a handful of retailers and many of the nation's largest manufacturers, including Nike and L.L. Bean. However, the Department of Defense, which has a $1 billion garment business that would make it the country's 14th largest retail apparel outlet, has not signed the Code of Conduct. In addition, it has not agreed to demand that its contractors submit to periodic inspections. Because the Department of Defense has not agreed to adhere to the cede, the job of stopping public sector sweatshops falls to the Department of Labor. Federal contractors that persist in violating wage laws or safety and health codes can lose their lucrative taxpayer financed contracts. But Suzanne Seiden, a deputy administrator at the Department of Labor, says that to her knowledge, the department has never applied that rule to government apparel manufacturers. "I just assume that they are adhering to safety and health requirements," she says. According to records obtained by Mother Jones, through a Freedom of Information Act request, the Occupational Safety and Health Administration has cited Lion 32 times for safety and health violations in the past 12 years.

What is this passage mainly concerned with？

A．The functions of the Department of Labor in America.

B．A serious problem threatening American economy.

C．The successful attempt of regulating sweatshops in America.

D．The seriousness of the problem of sweatshops in America.

ass basis or to find the gifted few and take them as far as they can go, our task would be fairly simple. The public school system, however, has no such choice, for the two jobs must be carried on at the same time. Because we depend so heavily upon science and technology for our progress, we must produce specialists in many fields. Because we live in a democratic nation, whose citizens make the policies for the nation, large numbers of us must be educated to understand, to support, and when necessary, to judge the work of experts. The public school must educate both producers and users of scientific services.

In education there should be a good balance among the branches of knowledge that con tribute to effective thinking and wise judgement. Such balance is defeated by too much emphasis on any one field. This question of balance involves not only the relation of the natural sciences, the social sciences, and the arts but also relative emphasis among the natural sciences themselves. Similarly, we must have a balance between the current and classical knowledge. The attention of the public is continually drawn to new possibilities in scientific fields and the discovery of new knowledge; these should not be allowed to turn our attention away from the sound, established materials that form. the basis of courses for beginners.

According to the passage, the task of education is fairly complicated because ______.

A．the current public school system is too complicated to be understood

B．the public school system has no choice of what to teach

C．it is difficult to decide whether elementary science should be taught in public schools

D．the educators should take care of both ordinary and gifted students

A.0→бcon

B.0→1.03бcon

C.0→бcon持荷2min→1.05бcon

D.0→1.05бcon持荷2min→бcon

E.0→1.03бcon持荷2minбcon

A.0→1.05Σcon

B.0→1.03Σcon

C.0→Σcon

D.0→1.08Σcon（持荷2分钟）→Σcon

A.0→1.08σcon锚固

B.0→1.05σcon→持荷2分钟→σcon锚固

C.0→1.03σcon→σcon锚固

D.0→1.03σcon锚固

E.0→σcon

A.0→σcon

B.0→1.03σcon

C.0→1.05σcon

D.0→1.05σcon→持荷5分钟→σcon