下列哪一点不是可摘局部义齿固位体必须具备的条件（）。
A.无异物感
B.对基牙不产生矫治性移位
C.不易积存食物
D.避免口内使用不同种类的金属
E.取戴时，对基牙无侧方压力
参考答案：A
解析：可摘局部义齿固位体必须具备的条件包括：对基牙不应产生矫治性移位，否则基牙会松动，故排除B；不易积存食物，否则余留牙易产生牙龈炎、继发龋等，故排除C；避免口内使用不同种类的金属，以免产生电流作用，故排除D；取戴时，对基牙无侧方压力，否则会损伤基牙，故排除E。而答案A不是可摘局部义齿固位体必须具备的条件，固位体设计可减小其异物感，但不可能无异物感，故应选A。
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| Mrs. White was very fat. She was over 100 kilos. 1 she went to see a doctor. The doctor said, "You need a balanced diet, Mrs. White, and I have a good 2 here." He gave Mrs. White a small book and said, "Read this carefully and eat the things on page 11 every day. Then come back and see 3 in four weeks." Mrs. White came again four weeks 4 , but she wasn't 5 . She was still very fat. The doctor was surprised and asked, "Are you eating the things on page 11 of the small 6 ?" "Yes, doctor." She answered. The next day the doctor visited Mrs. White during her 7 . He was very surprised. He said, "Mrs. White, 8 are you eating potatoes and bread? They 9 in your diet. ""But, doctor," Mrs. White answered, " I follow my diet 10 lunch time. This is my dinner. " | |||
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