(E) In many cases even authorized users are denied legitimate access to computers equipped with the software.
4. Division manager: I want to replace the Microton computers in my division with Vitech computers.
General manager: Why?
Division manager: It costs 28 percent less to train new staff on the Vitech.
General manager: But that is not a good enough reason. We can simply hire only people who already know how to use the Microton computer.
Which of the following, if true, most seriously undermines the general manager’s objection to the replacement of Microton computers with Vitechs?
(A) Currently all employees in the company are required to attend workshops on how to use Microton computers in new applications.
(B) Once employees learn how to use a computer, they tend to change employers more readily than before.
(C) Experienced users of Microton computers command much higher salaries than do prospective employees who have no experience in the use of computers.
(D) The average productivity of employees in the general manager’s company is below the average productivity of the employees of its competitors.(C)
(E) The high costs of replacement parts make Vitech computers more expensive to maintain than Microton computers.
5. An airplane engine manufacturer developed a new engine model with safety features lacking in the earlier model, which was still being manufactured. During the first year that both were sold, the earlier model far outsold the new model; the manufacturer thus concluded that safety was not the customers’ primary consideration.
Which of the following, if true, would most seriously weaken the manufacturer’s conclusion?
(A) Both private plane owners and commercial airlines buy engines from this airplane engine manufacturer.
(B) Many customers consider earlier engine models better safety risks than new engine models, since more is usually known about the safety of the earlier models.
(C) Many customers of this airplane engine manufacturer also bought airplane engines from manufacturers who did not provide additional safety features in their newer models.
(D) The newer engine model can be used in all planes in which the earlier engine model can be used.(B)
(E) There was no significant difference in price between the newer engine model and the earlier engine model.
6. Between 1975 and 1985, nursing-home occupancy rates averaged 87 percent of capacity, while admission rates remained constant, at an average of 95 admissions per 1,000 beds per year. Between 1985 and 1988, however, occupancy rates rose to an average of 92 percent of capacity, while admission rates declined to 81 per 1,000 beds per year.
If the statements above are true, which of the following conclusions can be most properly drawn?
(A) The average length of time nursing-home residents stayed in nursing homes increased between 1985 and 1988.英语作文
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