问题
单项选择题
桩核冠适用于（）
A．
锥形牙
B．横形冠折，达牙槽骨以下
C．
切角小范围缺损
D．横形冠折，达牙槽骨以上
E．近中邻面龋
答案
参考答案：D
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桩核冠适用于（）
A．锥形牙
B．横形冠折，达牙槽骨以下
C．切角小范围缺损
D．横形冠折，达牙槽骨以上
E．近中邻面龋
参考答案：D
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of the year. When spring comes, the 3. gets warmer and warmer. But it isn't hot." Gao Lan says, "I don't 4. spring. It is often 5. I like 6. instead (相反). I like swimming in the swimming pool. Sometimes I 7. in the river." Wang Fang says, "It's so 8. in summer. In autumn it is cool." "I like winter best. Sometimes it 9. and the ground are all 10. . We can go skating, play snow fight or make a snowman." Zhang Ming says. Which season do you like? |