与普通车床一样,普通铣床的主轴和进给系统是由同一个电机带动的
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In this section there are five short answer questions based on the passages in Section A. Answer the ques~ tions with NO more than TEN words in the space provided on ANSWER SHEET TWO.PASSAGE ONE41. What does the passage mainly discuss?
PASSAGE TWO52. Why is there an increasing interest in the Nazca lines?
PASSAGE THREE53. What is the theme of Steve Jobs's graduation speech at Stanford University?