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Which of the following could be one of the products？
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Operation of Detroit's trash incinerator, the largest in the nation, was halted last month, less than a year after it was put into service. The huge plant, which was designed to change waste into energy, had been hailed as an innovative means of putting trash to good use. However, soon after the plan began operating, unhealthy levels of mercury began to be detected in the air around the city. It was soon discovered that the culprit was the new incinerator. Entire neighborhoods were threatened by the toxins being discharged into the air. Environmental officials ordered the plant to be shut down last week. They say it is uncertain when, or even whether, the plant will reopen.
According to the passage, why was the plant shut down？
What was the function of the plant？
According to the article, which of the following is used the most？
Responding to the needs of an aging population, Health Network, Inc. of Melbourne and Futura Computing of Perth Amboy have agreed to cooperate in the development of handheld, computerized products to help the elderly monitor their health. It is widely accepted in the health-care field that patients who participate in monitoring their health status enjoy healthier lives. They are more aware of the factors affecting their health and are better-informed participants in making decisions regarding their health care. It is expected that these products will go a long way toward improving the health of senior citizens.
The cost of these products to the individual consumer will be covered under most insurance plans. They will be made available free or at reduced cost to low-income senior citizens who qualify according to government guidelines.
Who would most likely read this announcement？
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