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CR 24. One company claimed that if burn their wrappage accurately it won’t bring poisonous substance. So they think they needn’t to improve it. Weaken 25. There is one river without dam. The ratio former years that subsidiary current water which infuses into this river this year measures greatly, but do not bring about flood. Explanation 26.The medicine tube bureau passes new provision that if over a long period of time take herbal medicine without side effect can start in an advertisement. Even if cannot cure, also cannot injure the patient. Weaken 27. The builder wants to use one new material to instead the concrete, because this kind of new material has a better barrier property. 28. A fair in which the food sales contribute a lot, through the form of tax chard as same as to those city restaurant. In a certain year, the revenue from the fair is 20000. Therefore, somebody says if the fair is canceled, the city's revenue will be declined about 20000. support SC 11.Researchers agreed that the study of new treatments for heart attack patients was extremely important but more research was needed to determine that balloon angioplasty preceded with ultrasound was or was not any better for heart attack patients than the balloon procedure by itself.
A. more research was needed to determine that balloon angioplasty preceded with ultrasound was or was not any better for heart attack patients than
B. more research was needed for determining whether or not balloon angioplasty preceded by ultrasound is any better for heart attack patients than is
C. that more research was needed to determine whether balloon angioplasty preceded by ultrasound is any better for heart attack patients than
D. that more research was needed to determine that balloon angioplasty preceded with ultrasound was any better for heart attack patients than
E. that more research was needed for determining that balloon angioplasty preceded by ultrasound is or is not any better for heart attack patients than is RC 31.The customers compare the price between expensive and cheap durable products. The different kind of expensive durable products have large difference of the price, but the customers are seldom to compare the price. 32.The American companies are not as good as that in 1980’s. Some persons said it’s because of the mangers focus on short-term investment and the company annexing. However, the steel and another industrial, which are long-term investment industrial, are also not good. The real reason is they only focus on investment not focus on organization (such as training, education and etc.) CR 29. In response to viral infection, the immune systems of mice typically produce antibodies that destroy the virus by binding to proteins on its surface. Mice infected with a herpesvirus generally develop keratitis, a degenerative disease affecting part of the eye. Since proteins on the surface of cells in this part of the eye closely resemble those on the herpesvirus surface, scientists hypothesize that these cases of keratitis are caused by antibodies to herpesvirus.
Which of the following, if true, gives the greatest additional support to the scientists’ hypothesis?
A. Other types of virus have surface proteins that closely resemble proteins found in various organs of mice.
B. There are mice that are unable to form antibodies in response to herpes infections, and these mice contract herpes at roughly the same rate as other mice.
C. Mice that are infected with a herpesvirus but do not develop keratitis produce as many antibodies as infected mice that do develop keratitis.
D. There are mice that are unable to form antibodies in response to herpes infections, and these mice survive these infections without ever developing keratitis.
E. Mice that have never been infected with a herpesvirus can sometimes develop keratitis. | 
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发表于 2006-10-25 12:58:00
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