[单项选择]During the past years the _____of automobile accidents in New York City has decreased.
A. degree
B. quantity
C. number
D. amount

[单项选择]During the past years the _____of automobile accidents in New York City has decreased.
A. degree
B. quantity
C. number
D. amount

[单项选择]

During the past years, intelligent technology has evolved (116) three generations. The first was characterized by tools such as prolog and OPS. prolog is a simple backward-chaining environment, and OPS is a simple forward-chaining environment. This led to the second generation of knowledge-engineering environments. Its goal was to model, prototype and construct (117) systems.
All three generations were oriented toward generic (118) and represented generalized implementation environments for the construction of expert systems. knowledge bases and AI applications.Some of the solution-oriented products are also seamlessly integrated with generic knowledge-engineering environments, permitting end users to add (119) rules and objects, as well as predefined knowledge-based logic to address problems in manufacturing simulation.Marketplace orientation is rapidly (120) toward solution-oriented intelligent product environments. the fourth generat
A. custom
B. knowledge
C. through
D. problemsolving

[填空题]uncompensated. During the past 20 years of economic inactivity, many companies

[单项选择]

Seldom any mistakes during my past five years of service in the company.（　）

A. I did make
B. I would make
C. did I make
D. would I make

[单项选择]During the past ten years there have been dramatic changes in the international situation（　）.
A. permanent
B. powerful
C. striking
D. practical