单选题 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.
E、 (E) The high costs of replacement parts make Vitech computers more expensive to maintain than Microton computers.

【正确答案】 C

【答案解析】[解析] “两人对话型”的反对，并且是让第一个人反对第二个人时，在很多情况下，重点在于反对第二个人的最后一句话，即“We can simply，hire only people who already know how to use the Microton computer.”(C)指出熟练使用Microton的员工会要求更高的收入，从而雇用他们会提高成本，所以反对了the general manager的观点，因此(C)正确。