更多"In the wake of such findings, sever"的相关试题:
[单项选择]The level of lead contamination in United States rivers declined between 1975 and 1985. Federal regulations requiring a drop in industrial discharges of lead went into effect in 1975, but the major cause of the decline was a 75 percent drop in the use of leaded gasoline between 1975 and 1985.
Which of the following, if true, best supports the claim that the major cause of the decline in the level of lead contamination in United States rives was the decline in the use of leaded gasoline
A. The level of lead contamination in United States rivers fell sharply in both 1975 and 1983.
B. Most of the decline in industrial discharges of lead occurred before 1976, but the largest decline in the level of river contamination occurred between 1980 and 1985.
C. Levels of lead contamination in rivers fell sharply in 1975-1976 and rose very slightly over the next nine years.
D. Levels of lead contamination rose in those rivers where there was reduced river flow due to drought.
E. (E) Although the use of leaded gasoline declined 75 percent between 1975 and 1985, 80 percent of the decline took place in 1985.
[单项选择]The United States (has sent) several (spacecrafts) into orbits (around the earth) and has collected a lot of (information)（）
A. has sent
B. spacecrafts
C. around the earth
D. information
[单项选择]
The United States has hosted the Olympic Games a record eight times. St. Louis, Los Angeles (twice) and Atlanta have been the sites of the summer Games while Lake Placid (twice). Squaw Valley and Salt Lake City in 2002 have welcome the winter Games.
Ten U. S. cities have entered the process to become the candidate city for the 2010 Olympic Games which will be selected by the U. S. Olympic Committee Board of directors. The U. S. city will then face competition from around the world with the International Olympic Committee making the final decision.
The 10 cities have until the spring of 2000 to prepare their final bids for the USOC. Following site evaluations and the XLXth Olympic Winter Games in Salt Lake City, Utah (Feb. 8-24,2002), the U. S. Olympic candidate city will be elected in the fall of 2002 at the USOC’s Board of Direction meeting. The closing date for all worldwide candidate cities to submit bids to the International Olympic will be in the winter
A. vice president of USOC
B. president of IOC
C. president of USOC
D. vice president of IOC
[单项选择]Which two states have declared states of emergency（ ）.
A. Carolinas and New England.
B. Connecticut and New Jersey.
C. Vermont and New York.
D. Pennsylvania and Maine.
[填空题]The research findings report commercial rather than political trends.
[单项选择]What are the findings of recent survey
A. The reasons why-people don’t read newspapers are more complicated than assumed.
B. There are more uneducated people among the wealthy than originally expected.
C. The number of newspaper readers is steadily increasing.
D. There are more nonreaders among young people nowadays.
[填空题]Last year, researchers published new findings from the Women’s Health Initiative, a long-term study of more than 160000 midlife women. The data showed that multivitamin-takers are no (36) than those who don’t take the pills, at least when it comes to the big diseases-cancer, heart disease, and (37)
"Even women with poor diets weren’t helped by taking a multivitamin," says study author Marian Neuhouser, PhD, in the cancer (38) program at the Fred Hutchinson Cancer Research Center, in Seattle.
Vitamin (39) came into fashion in the early 1900s, when it was difficult or impossible for most people to get a wide variety of fresh fruits and vegetables year-round. Back then, vitamin (40) diseases weren’t unheard-of: the bowed legs and (41) ribs caused by a severe shortage of vitamin D, or the skin problems and mental (42) caused by a lack of vitamin B.
But these days, you’re (43) unlike
