更多"Zambia’s copper industry, which onl"的相关试题:
[多项选择]Zambia’s copper industry, which only last year still boasted a rosy future, seems to be staggering towards a rather gloomier end. A group of worried bystanders—the World Bank, the Zambian government, private investors, the mine workers and their families—are looking on, wringing their hands. Some 15,000 jobs and Zambia’s biggest industry are threatened by the mines’ possible closure. What has gone wrong
Consider first the invisible hand of the market. Zambia’s copper is too expensive. Two years ago, when the mines were privatized, it cost 100 cents to dig out every pound of copper. But the world price at the time was just 84 cents. Last year, efficiency improved and the Konkola Copper Mines (the country’s largest) turned out a pound of copper for 85 cents. But that, sadly, was still well over the market price, which had by then fallen to 75 cents.
[填空题]What sort of factory did we visit last year
Last year we visited a ___________.
[单项选择]Last year Luis invested x dollars for one year, half at 8 percent simple annual interest and the other half at 12 percent simple annual interest. Now he wants to reinvest the x dollars for one year in the same two types of investments, but the lower rate has decreased, If the higher rate is unchanged, what fraction of the x dollars must be reinvest at the 12 percent rate s that the total interest earned from the x dollars will be the same for both years ?()
(1)The lower rate is now 6 percent.
(2)The total amount of interest earned from the two investments last year was $3,000.
A. 条件(1)充分,但条件(2)不充分.
B. 条件(2)充分,但条件(1)不充分.
C. 条件(1)和(2)单独都不充分,但条件(1)和条件(2)联合起来充分.
D. 条件(1)充分,条件(2)也充分.
E. 条件(1)和条件(2)单独都不充分,条件(1)和条件(2)联合起来也不充分.
[填空题]Not only __________(这家工厂完成生产任务)last year, but it also doubled its output.
[单项选择]
Where did the woman go last year
[单项选择]
Some heartening statistics were reported last year by the Journal of the National Cancer Institute: the mortality rate for breast cancer dropped nearly five percent between 1989 and 1992, the Largest decline since 1950. The numbers were even more dramatic for young women: between 1987 and 1992, the mortality rate plummeted nearly 18 percent among white women younger than 40.
But discouraging news also surfaced: the mortality rate among black women has gone up, and the number of reported breast cancer cases is rising as well. Twenty years ago a woman’s lifetime risk of breast cancer was one in 12; now it’s one in eight.
Nevertheless, we’re on the verge of a revolution in treating this disease. Researchers now have a clear picture of how a cancer cell becomes a tumor -- and how cells break free from a tumor and glide through the bloodstream to seed a new one in another part of the body. And they better understand how the female hormone estrogen mak
A. The mortality rate for breast cancer dropped.
B. The mortality rate among black women has increased.
C. The number of reported breast cancer cases is rising.
D. A woman’s lifetime risk of breast cancer is rising.
[单项选择]Where did the woman work last year
A. In a company.
B. In a school.
C. In the station.
[单项选择]Unfortunately sales results over the last year have failed to come up to our expectations. A number of factors have been responsible, but basically it is the result of too many companies chasing the microcomputer market which is no longer expanding as fast as it once was.
Looking at the past year in detail, it must be admitted that the sales have declined considerably over the period. Our market share in wholesales has dropped from 21% to only 10%. The lack of a good local distributor in Asia has meant that our sales of the Obec series have collapsed despite the huge jump in the microcomputer market there during the past year. Our dominance of that part of the market has been lost to Strong, but once we find a new distributor we should come back strongly.
Retail sales in general have been a problem. There has been a tendency for the big high street stores to concentrate on high volume turnover of a few fairly well-known makers. When they stopped promotion of the Obec 1500
A. A company introduction to its employees.
B. A market analysis for a specific industry to inform a client.
C. An annual report of a company to direct its future decision.
D. A marketing strategy proposal for discussion.
[填空题]Who was bitten by a dog last year
[单项选择]
Cancer and Chemicals
Last year, California governor George Deukmejian called together many of the state’s best scientific minds to begin implementing
Proposition 65, the state’s
Safe Drinking Water and
Toxic Enforcement Act. This new law bans industries from discharging chemical suspected of causing cancer (carcinogens) or birth defects into water supplies. Some claim it will also require warning labels on everything that might cause cancer.
A day of esoteric science and incomprehensible jargon was predicted. But Bruce Ames, Chairman of the Department of Biochemistry at the University of California at Berkeley, had plans to liven the proceedings. Walking into the room, Ames looked like the quintessential scientist: wire-rimmed bifocals, rumpled suit, tousled hair and a sallow complexion that showed he spent more time in his laboratory than in the California sunshine. As someone intoned about the mechanisms
A. he suggested that some students test various household products
B. he stated that many common hair dyes tested positive
C. he stated that a flame retardant used in children’s pajamas tested positive
D. his findings resulted in new regulations and laws on certain chemicals