问题
单项选择题
判断柴油机主轴承位置高低的最基本的方法是（）。
A．分析法
B．经验法
C．桥规值作图法
D．臂距差简单作图法
答案
参考答案：A
搜题请搜索小程序“爱下问搜题”
判断柴油机主轴承位置高低的最基本的方法是（）。
A．分析法
B．经验法
C．桥规值作图法
D．臂距差简单作图法
参考答案：A
完形填空（共20小题，每小题 1.5 分，满分 30 分） 阅读下面短文，从短文后各题的A、B、C、D四个选项中，选取出适合填入空白处的最佳选项，并在答题卡上将该选项涂黑。 When my son unexpectedly volunteered for the Marines, I was busy writing my novels and giving little thought to the men and women in the army. My son, John Schaeffer, recently came home _36__ from the Middle East. He slowly appeared from a broken car; John _37__ all night from a base near Washington, _38__ he had landed the day before. He did not want me to 39___ him there. “I’ll need time to myself,” my son said _40__ calling from Kuwait on the way home. I gave my wife a head start. Mother_41__ son, “I was so worried”, Genie said. She pulled away to look up again and again to _  42___ he was really there.My wife gave me a great gift: _43__ alone with my boy. John was tired and lay _44__ on his bed. I lay down next to him and was grasping his hand the whole time. I just wanted to be certain that the nightmares I’d had about John being killed were _45__ . I kept holding my son, the way I _46__ when he was two and came into our bed after a _47__ dream. I asked John if he’d rather sleep than talk, and he said there would be time for 48___ later. With the 49___ over, under and around me came incredible tiredness. I slept with his voice dying away. It was the first good _50__ I’d had in months. I woke and John was asleep next to me. Sitting by his bed watching him breathe, I found myself praying and _51__ for all the fathers, mothers, sons, daughters, husbands and wives of those who were not coming home. For the first time in my life, I was weeping for _52___. Before my son went to war I would never have shed tears for them .My son _53__ me. He taught me that our men and women in uniform are not the _54__”. They are our sons, daughters, brothers and sisters. Sometimes shedding ears for strangers is a holy _55___. Sometimes it’s all we can do. 小题1:
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