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CDC considered the outbreak of West Nile in 1999 as a consequence of
[A] the abolition of the mosquito-control programs.
[B ] the surviving mosquito-borne infections.
[C] the abuse of some $ 50 million in funds.
[D] its failure to conquer mosquito-borne diseases.
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U.S. Eats Too Much Salt
People in the United States consume more than twice the recommended amount of salt, raising their risk for high blood pressure, heart attacks and strokes, government health experts said on Thursday.
They found nearly 70 percent of U. S. adults are in high-risk groups that would benefit from a lower-salt diet of no more than 1,500 mg per day, yet most consume closer to 3,500 mg per day.
"It's important for people to eat less salt. People who adopt a heart-healthy eating pattern that includes a diet low in sodium (钠) and rich in potassium (钾) and calcium (钙) can improve their blood pressure," Dr. Darwin Labarthe of the Centers for Disease Control and Prevention (CDC) said in a statement.
"People need to know their recommended daily sodium limit and take action to reduce sodium intake (摄入量) ," Labarthe said.
The study in the CDC's weekly report on death and disease used national survey data to show that two out of three adults should be consuming no more than 1,500 mg of sodium per day because they are black or over the age of 40 -- which are considered high-risk groups.
Yet studies show most people in the United States eat 3,436 mg of sodium per day, according to a 2005-2006 CDC estimate.
Most of the sodium eaten comes from packaged, processed and restaurant foods. The CDC said it will join other agencies in the Health and Human Services Department in working with major food manufacturers and chain restaurants to reduce sodium levels in the food supply.
Nationwide, 16 million men and women have heart disease and 5.8 million are estimated to have had a stroke. Cutting salt consumption can reduce these risks, the CDC said.
Eating too much salt raises a person's risk for______.
A．strokes.
B．heart attacks.
C．high blood pressure.
D．all of the above.
The center of flotation of a vessel is ().
A.The center of volume of the immersed portion of the vessel
B.The center of gravity of the water plane
C.That point at which all the vertical downward forces of weight are considered to be concentrated
D.That point at which all the vertical upward forces of buoyancy are considered to be concentrated
Freshwater is considered important because
A．it evaporates more quickly than water in the ocean
B．it is the largest source of water on Earth
C．it determines the landscape of rocks and sediment
D．it is the runoff that empties into the oceans
When Patrick considered his time in the army "in retrospect", he ______.
A．regretted his waste o time serving in the army
B．corrected his previous view on military service
C．still felt sorrow for those under a forced service
D．revealed his failure to get on with people
117 Which of the following is considered a direct cost for producing a widget？
A. The cost of the materials used to produce a widget.
B. The labor costs of the workers who actually produced the widget.
C. The rent for the building in which the widget was manufactured
D. The salary of senior management and the project sponsor
E. A and B only
Madonna and Michael Jackson axe not considered heroes because ______ .
A．they are popular only among certain Stoups d people
B．their performances do not improve their fans morally
C．their primary concern is their own financial interests
D．they are not clear about the principles they should follow
The author mentions that published music is not considered to be folk music because
A．the original composer can be easily identified
B．the songs attract only the young people in a community
C．the songs are generally performed by professional singers
D．the composers write the music in rural communities
A．she has not make out the standard
B．she has considered the position
C．she has not avoided the publication
D．she has not stuck to her own way
Why does the professor mention fingerprints？
A．To demonstrate that blood types are different for individuals
B．To explain how most of the blood tests are performed
C．To explain why O blood is considered universal
D．To help students remember the different antigens
32 Which of the following statements is probably NOT true？
A The surveys were conducted in a period of l o years.
B The girls ranged in age from 10 to 14.
C Only 7.2 percent of children in the country are overweight.
D Over 30 percent of the girls considered themselves overweight.
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