问题
单项选择题
在车床研磨外圆柱面时，当出现与轴线小于45°交叉网纹时，说明研磨环的往复运动速度（）。
A、太快
B、太慢
C、太快或太慢
D、适中
答案
参考答案：A
搜题请搜索小程序“爱下问搜题”
在车床研磨外圆柱面时，当出现与轴线小于45°交叉网纹时，说明研磨环的往复运动速度（）。
A、太快
B、太慢
C、太快或太慢
D、适中
参考答案：A
A young man was about to finish school. For a long time he had 1 to get a beautiful sports car. He knew his father could well 2 it, so he told him that a sports car was all he wanted. Then on the morning of his graduation(毕业),he was called to his father’s room. His father told him how 3 he was to have such a fine son, and told him how 4 he loved him. He handed his son a beautiful gift box. 5 , the young man opened the box and found a lovely Bible（圣经）with his name on it. Angrily, he raised his 6 to his father and said, “With all your money you give me a Bible? ” He then 7 out of the house, leaving the Bible. Many years passed and the young man was very 8 in business, and had a beautiful home and a wonderful family. 9 that his father was very old, he thought perhaps he should go to see him. He had not seen him 10 that graduation day. Before he could go, he received a 11 telling him that his father had died. He had to go home immediately and take 12 of the things that his father left him. When he began to search through his father’s important papers, he saw the still new Bible, 13 as he had left it years ago. He opened the Bible and began to 14 the pages. As he was reading, a car key with a tag（标牌）dropped from the back of the Bible. On the tag was the 15 of his graduation, and the words “PAID IN FULL”. Sadness and regret（悔恨）filled his heart.
|