问题
单项选择题
引起牙髓疾病的物理化学因素可发生在以下情况，除外
A．金属材料直接充填深窝洞
B．窝洞制备过程中连续转磨
C．窝洞消毒不当
D．窝洞过度干燥
E．牙外伤
答案
参考答案：E
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引起牙髓疾病的物理化学因素可发生在以下情况，除外
A．金属材料直接充填深窝洞
B．窝洞制备过程中连续转磨
C．窝洞消毒不当
D．窝洞过度干燥
E．牙外伤
参考答案：E
A young man was one day taking a walk with a professor. As they went along, they saw 36 in the path a pair of old shoes. They guessed the shoes belonged to a poor man who had 37 finished his day’s work in a field close by. The student 38 the professor, saying, “Let’s play the man a(n) 39 : we will hide his shoes, and we stay behind those bushes to see his 40 when he cannot find them.” “My young friend,” answered the professor, “we should never 41 ourselves in that way. You are 42 , and may give yourself a greater pleasure by helping the poor man. Perhaps we put a 43 into each shoe, and watch his reaction.” The student did so, and they both 44 themselves behind the bushes. The poor man soon finished his work, and came 45 the field to the path where he had left his coat and shoes. While 46 his coat he slipped his foot into one of his shoes; but feeling something 47 , he bent down to feel what it was, and found the coin. He was 48 , and looked at the coin again and again. He then looked around 49 on all sides, but no person was to be seen. He now put the money into his pocket, and began to put on the other shoe; but his surprise was 50 on finding the other coin. His feelings overcame him; he fell upon his 51 , looked up to heaven and preyed, He spoke of his wife, sick and 52 , and his children without bread. The timely giving, from some unknown hand, would 53 from dying. The student was moved and his eyes filled with tears. “Now,” said the professor, “are you not much better pleased than if you had played your 54 trick?” The youth replied, “Thank you! Sir! I feel now the 55 of those words, which I never understood before: ‘It is more blessed to give than to receive.’
 ．faith B．fact C．truth D．reliability |
