问题
单项选择题
DF4C型机车正常工作时，规定的抱轴瓦与轴颈的径向游隙为（）。
A、0.1～0.2mm
B、0.2～0.3mm
C、0.3～0.4mm
D、0.2～0.4mm
答案
参考答案：D
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DF4C型机车正常工作时，规定的抱轴瓦与轴颈的径向游隙为（）。
A、0.1～0.2mm
B、0.2～0.3mm
C、0.3～0.4mm
D、0.2～0.4mm
参考答案：D
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| Jimmy is a black and white dog. We all like 1 very much. He is a member of our 2 . Jimmy is one and a half years old. He usually 3 at about 7: 00 a.m. And at 7: 30 he eats his 4 . He usually has bones (骨头). Sometimes he has 5 . After that he goes out and brings 6 for us to drink. At about 9: 00 he goes out to meet 7 , a brown dog next door. He comes back at about 11: 30 a.m. for his lunch and sleeps three hours. At about 3: 30 p.m. he 8 and brings us the evening newspaper. Then I walk him in the park. We often play Frisbee (飞碟) together there. At about 6: 00 p.m, he 9 his meal. Every day at 7: 00 in the 10 he and I sit together on the sofa to watch TV. Then he sleeps. | ||||
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