患者，女，38岁。
缺失二年余，要求固定义齿修复而就诊。口腔检查：缺失，缺隙大小正常，缺牙区及两侧天然牙情况良好，咬合正常。拟为该患者行固定义齿修复
在选择固定桥基牙时，临床冠根比的最低限度一般是()
A．1:1
B．1:2
C．2:3
D．3:2
E．3:4
参考答案：A
解析：
理解记忆题。在选择固定桥基牙时，临床冠根比的最低限度一般是1:1。
Once upon time, a man taught some monkeys how to dance. The monkeys were 16 clever that they began to dance well very soon. The man was happy. He 17 the monkeys up in special clothes and masks(面具). Then he took them to 18 party. He wanted people 19 his dancing monkeys. The dancing monkeys were very popular at the party. 20 knew they were monkeys, and everyone enjoyed 21 them dance. Then a naughty boy threw some bananas in front of the dancing monkeys. 22 the sight of the bananas,the monkeys forgot all about 23 . They tore off 24 masks and rushed over to the bananas and began to eat. All the people at the party began to laugh. "They aren't dancers at all," said one person. "They are just monkeys! I guess not everything you see is 25 it appe- ars to be!" "And," said another, "you should never try to be something you're not."
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