问题
单项选择题
牙周病患者在何时可以进行正畸治疗
A．只要牙槽骨吸收不到1/2时，就可进行正畸治疗
B．只要控制牙周病后就可进行
C．任何时候牙周病患者都不能进行正畸治疗
D．牙周病患者任何时候都可进行正畸治疗
E．牙周病患者牙槽骨吸收不到1/2时，控制了牙周病后方可进行正畸治疗
答案
参考答案：B
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牙周病患者在何时可以进行正畸治疗
A．只要牙槽骨吸收不到1/2时，就可进行正畸治疗
B．只要控制牙周病后就可进行
C．任何时候牙周病患者都不能进行正畸治疗
D．牙周病患者任何时候都可进行正畸治疗
E．牙周病患者牙槽骨吸收不到1/2时，控制了牙周病后方可进行正畸治疗
参考答案：B
In China, when a foreign guest is invited to have dinner at a restaurant, he will not be to know all the traditional table manners. But the guest knows some of them will get “face” and give “face” to his host. ,foreign guests will be forgiven(原谅)for not knowing dining etiquette(礼仪).If they aren’t used to chopsticks, hey will naturally be offered a fork. Chinese food, however, seems to taste better when it is eaten with . Although western customs have influenced Chinese dining habits, most of the traditions still live on. The guest of honor will usually be seated facing the .If the host can’t decide how to give a seat to his guests, he will seat them according to age. The host sits the door, as in the West, so that he is nearest to the kitchen. they have dinner in the host’s home, what will the host do? He’ll go out of his way to bring each dish to the table .Each guest will feel .The host will make them feel at home.
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