问题
填空题
73-200型潜孔钻机回转供风机构的作用主要是旋转钻具，向冲击器（）。
答案
参考答案：供给压气
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73-200型潜孔钻机回转供风机构的作用主要是旋转钻具，向冲击器（）。
参考答案：供给压气
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| Mr. Johnson was having trouble with his stomach. 1 he went to see a doctor. The doctor examined his stomach 2 but couldn't find any problem. Then he said,"Well,Mr. Johnson,take it 3 . There's 4 serious,stop 5 and then you'll be all right very 6 ." "But doctor," answered Mr. Johnson,"I 7 ,and I don't like smoking 8 " "Oh,I see, " said the doctor,"then stop drinking alcohol (酒) 9 ." "But I don't drink alcohol," answered Mr. Johnson. "Don't drink 10 tea or coffee then," the doctor said 11 him. "I 12 drink water," answered Mr. Johnson,"I don't like tea or coffee, 13 The doctor 14 for a while and then said,"Well,what do you like to eat then?" "Potatoes,I like potatoes very much," Mr. Johnson answered at once. "All right,then stop 15 potatoes," said the doctor as Mr. Johnson got up to say goodbye to him. | ||||
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