下列哪项不是人工牙折断脱落的原因（） A.咬合力过大 B.填塞时

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问题单项选择题 A1/A2型题

下列哪项不是人工牙折断脱落的原因（）

A.咬合力过大

B.填塞时残留玻璃纸

C.人工牙盖嵴面涂有分离剂

D.人工牙盖嵴面有蜡未去净

E.磨改了人工牙的盖嵴部

答案

参考答案：E

填空题

单词填空。根据句子内容和所给首字母填入适当的单词。

1. Mike usually goes to school by bus, but today he goes by b______.

2. The 2008 Olympic G______ will be held in Beijing.

3. Bill says he wants to j______the army when he grows up.

4. A stranger was knocking at the door, but she was afraid of l______ him in.

5. Her mother became s______ ill and had to be sent to hospital at once.

单项选择题

使用下述哪种方法，可方便地同时调整多个图层的不透明度和色彩混合模式（）。

A.重新排列图层

B.创建链接层

C.创建图层组

D.创建剪辑组