问题
单项选择题
缸盖平面度误差较大时，应采取（）修复。
A.锉削法
B.刮削法
C.磨削法
D.研磨法
答案
参考答案：C
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缸盖平面度误差较大时，应采取（）修复。
A.锉削法
B.刮削法
C.磨削法
D.研磨法
参考答案：C
阅读下面短文，掌握其大意，然后从各题所给的A、B、C、D四个选项中，选出最佳选项。 Mrs. White lost her dog. After searching place after place, she placed a “Lost Dog” advertisement in the local newspaper. The following morning her phone rang and a voice began, “I’m calling about your __ .” Then the caller coughed and cleared her voice a few times. She that she wasn’t feeling well and that, in fact, she hadn’t felt well her husband died three years ago. She went on to tell that her parents had passed away, and her sister was with a deadly illness. Even her friends were not doing well. After 30 minutes of , sympathizing and even trying offers of help, the dog owner __ the conversation back to the subject. “About the dog,” she said. “Oh,” the caller , “I don’ t have him. I just thought I’d call to you up.” Maybe her technique needed improving, but her were right on. And though “cheering up” may not be exactly what we , we certainly need encouragement --- --- at times. The need for sincere is basic among human beings. Do you need encouragement? There’re those who will support your side. Educator Booker T. Washington observed, “There’re two ways of one’s strength: one is pushing down; __ is pulling up.” There’re people ready to pull you up when others are pushing down. We need those people in our lives - those who use their strength by pulling us up. I believe these people can be found . I believe that we can all become “ ”, lifting one another from dark pits of discouragement to the light of . And when that happens, the world will never be .
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