存在于胆囊或胆管中，且后方无声影的回声团不可能为（） A.息肉 B.胆泥 C.气体

这个标志的含义是告示前方道路是单向通行路段。

工人技术等级标准应根据（）。

A.地方标准

B.企业标准

C.行业标准

D.国家标准

下列关于物质的量的叙述中，正确的是（  ）。

A．1 mol任何物质都含有6.02×10²³个分子

B．0.012 kg¹²C中含有约6.02×10²³个碳分子

C．1 mol水中含有2 mol氢和1 mol氧

D．1 mol Ne中含有6.02×10²⁴个电子

B

Today, robots come in all shapes and sizes. They can’t complain, even if the work is heavy and dangerous. And they can work or play all day without getting bored. Unlike a human’s arms, a robot’s joints will never get stiff (僵硬的). The end of the arm can be fitted with devices (装置) to perform different tasks. These could be a welding (焊接) point, suction cups (吸附杯) or gripping fingers (钳形指) for lifting and moving objects. Such an arm of these computer controlled industrial robots can work 24 hours a day.

Robopets (机器人宠物) are high-tech robots programmed to play. They can communicate with their owners and recognize their voices. Each one will develop a different “personality”. They can be a lot of fun to play with, but these robots can also be helpful to people who are sick and can’t look after a real animal. Many doctors believe that when a person is happy and laughing, their body recovers faster. A robopet might be just what the doctor ordered.

NeCoRo is a robot cat that has been developed to be more than a toy. The robot uses sensors (传感器) that can detect movement and sound. It can even store helpful information in its memory. Its behaviour changes over time, just like a real pet.

60. From Paragraph 1 we learn that ________.

A. a human’s arms never get stiff

B. robots sometimes get bored just as humans do

C. robots can do some work which humans can’t

D. robots can work all day but they can’t play

61. Rob pets are especially useful in ________according to the passage.

A. schools                 B. Hospitals       C. cinemas             D. factories

62. Which of the following is NOT true according to the passage?

A. A robot never says “NO” to the dangerous work.

B. A robot can “remember” useful information.

C. NeCoRo is a robot dog.

D. NeCoRo’s behaviour changes over time.

63. What does the underlined word “detect” in Paragraph 3 mean?

A. Recognize.         B. Create.          C. Store.                D. Destroy.

遵守全面质量管理原则的机构具有哪项特征？（）

A.在生产完成之后、将产品向顾客运送之前检查产品有无缺陷。

B.与外界打交道的雇员以顾客为中心，包括预测顾客的需要，并向他们作出恰当的反应。

C.不与外界打交道的雇员在他们所在的专门领域训练有素，而对其所在领域之外的生产的其他方面则普遍只有最低程度的了解。

D.在引进重要变化措施时，生产过程定期得到改善。