做嵌体牙体预备时，错误的做法是（）A．去尽病变腐质 B．轴面最大周径线降至龈缘 C．
题型：单项选择题
问题：
做嵌体牙体预备时，错误的做法是（）
A．去尽病变腐质
B．轴面最大周径线降至龈缘
C．提供良好的固位形和抗力形
D．适当磨改异常的对颌牙
E．预防性扩展
题型：单项选择题
| 在短文的空格内填入适当的词，使内容通顺，每空格限填一词，首字母已给。 |
 | We all like getting into gossip (闲聊). Studies s 1 that gossiping releases (释放) our emotions and reduces tension (紧张). Research has proved that in the USA, gossiping can make people more democratic (民主，平等). It is a way of free expression. While gossiping, people communicate with a free mind. |
| Gossiping h 2 us shift (转移) our interest to others. When we gossip, we seldom discuss our own problems. We generally discuss another person who is not present. Doing so, we laugh away our own cares. Sometimes we feel sorry for a person involved in a particular problem. And we also come up with solutions to his problems. More happiness flows into our lives when we help and guide a person we are t 3 about. But, be aware of the dangerous side of gossiping! Gossiping can be harmful if you h 4 others on purpose. When you start speaking i 5 of someone, you start criticizing others for nothing. When you gossip with an ill-will, it makes you tense. Tension naturally comes to you when you try to make others tense. Why do people talk badly about each other? People pass bad remarks about others simply out of hatred (憎恨), fear, envy (妒忌), and greed. The person making insulting (侮辱性的) remarks thinks his listener will keep the talk a s 6 , but gossiping travels faster than the wind! And still faster when the gossiping is bad! We all gossip at one time or another. After gossiping, people feel l 7 and relaxed. But purely bad gossiping makes us tense and envious of others. |
