问题
单项选择题
嵌体的适应证，不包括的是（）。
A.因牙体缺损造成食物嵌塞严重，需恢复邻面接触点者
B.固定桥的基牙已有龋洞，设计嵌体作为基础固位体
C.牙体缺损范围大，残留牙体组织抗力形差者
D.牙体缺损已涉及牙尖、切角、
边缘嵴以及面者
E.以上都不是
答案
参考答案：C
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嵌体的适应证，不包括的是（）。
A.因牙体缺损造成食物嵌塞严重，需恢复邻面接触点者
B.固定桥的基牙已有龋洞，设计嵌体作为基础固位体
C.牙体缺损范围大，残留牙体组织抗力形差者
D.牙体缺损已涉及牙尖、切角、边缘嵴以及面者
E.以上都不是
参考答案：C
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| Peter and James were brothers. One afternoon __1__ the lessons were over, they stayed in school to help their teacher. They__ 2__ for an hour. Then the teacher said, "Thank you, boys. We will finish the work tomorrow. Now you must go home." When the boys __3__ home, it was seven o'clock. There was light inside their house and the door was ___4__. They could see a man inside, too. "Who can it be?" thought Peter. "Father and Mother have gone shopping. They won't be home __5__ eight o'clock." When the ___6__ man saw Peter, he smiled and said, "Come in! You don't know me, but I'm your __7__friend. He asked me to fetch (取)some money for him." The man did not see James. Peter went inside and began talking to the man but James did not. He quietly but quickly ran off to call the police. He soon found a policeman and __8__ him back to their home. The man was still there, but when he saw the policeman, he tried to run off. The policeman __9__ him and held his arm. Just then Mr. and Mrs. Baker, the boys' parents _10__. "No!" said Baker. "I don't know him. He must be a thief. I am glad you have caught him."
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