4.The proportion of manufacturing companies in LACE w:st="on">AlamedaLACE> that use microelectronics in their manufacturing processes increased from 6 percent in 1979 to 66 percent in 1990. Many labor leaders say that the introduction of microelectronics is the principal cause of the great increase in unemployment during that period in LACE w:st="on">AlamedaLACE>. In actual fact, however, most of the job losses were due to organizational changes. Moreover, according to new figures released by the labor department, there were many more people employed in LACE w:st="on">AlamedaLACE> in the manufacturing industry in 1990 than in 1979.
Which of the following, if true, would most strengthen the labor leaders’ claim concerning the manufacturing industry in LACE w:st="on">AlamedaLACE>?
(A) From 1979 to 1990, fewer employees of manufacturing companies in LACE w:st="on">AlamedaLACE> lost their jobs because of the introduction of microelectronics than did employees of manufacturing companies in the nearby community of Rockside.
(B) The figures on the use of microelectronics that were made public are the result of inquiries made of managers in the manufacturing industry in Alameda.
(C) The organizational changes that led to job losses in all sectors of the manufacturing industry in Alameda were primarily the result of the introduction of microelectronics.
(D) Figures on job losses in the manufacturing industry in Alameda for the late sixties and early seventies have not been made available.
(E) A few jobs in the manufacturing industry in Alameda could have been saved if workers had been willing to become knowledgeable in microelectronics.
答案为Ｃ．我选Ｅ．
文中labor leaders的观点是Many labor leaders say that the introduction of microelectronics is the principal cause of the great increase in unemployment during that period in Alameda．
in actual fact, 后是作者的观点．
偶觉得Ｅ：是非Ａ－－＞非Ｂ的加强．
而Ｃ：实际上还是承认了organizational changes，是加强了作者的观点．
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