题目内容

容易出现基托不密合的是

A. 基托过薄
B. 人工牙磨耗
C. 模型不准确
D. 开盒过早导致基托变形
E. 人工牙盖嵴部蜡未去净

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工程变更包括工程量变更、工程项目变更、进度计划的变更和施工条件的变更等。( )

A. 对
B. 错

What are two kinds of businesses that sometimes have small staffs______ or manufacturer’s representatives.

法律责任与法律制裁具有逻辑上的联系，追究法律责任都要通过法律制裁。

A. 对
B. 错

Section ADirections: This section is to test your listening ability to understand short dialogues. There are 5 recorded dialogues in it. After each dialogue, there is a recorded question. Both the dialogues and questions will be spoken only once. When you hear a question, you should decide on the correct answer from the 4 choices marked A, B, C and D given in your test paper. Then you should mark the corresponding letter on the Answer Sheet with a single line through the center.

A. It is too far from the city center.
B. Customers have to pack their own goods.
C. The goods are too expensive.
D. There isn’t much variety.