题目内容

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

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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.

How does a person rise to the top in a companyThe way to the top lies through ______ positions.

某技师在修整一例后牙三单位烤瓷桥外形时，烤瓷冠边缘崩瓷对瓷粉与金属材料的性能要求，描述不正确的是

A. 有良好的硬度和强度
B. 金属的热膨胀系数略小于瓷粉
C. 有良好的生物相容性
D. 金属的熔点应该高于瓷粉的熔点
E. 两者之间可产生牢固的共价力