Forging is economical for ( ).

As a forging machine, hydraulic press can produce a force of ( )

What is the difference between open-die and closed-die forging?lllustrate.Give an example of a metal product produced by each process.

It is high time to honor the heroes who helped liberate slaves by forging the Underground Railroad in the early civil-rights struggles in America.

Which<br/>one is the basic process of open die forging() A: chamfering B: upsetting C: indentation D: necking

The history of knife forging by Achang people already has been over _______ years. A: 500 B: 600 C: 700 D: 800

What is the spirit of HUAWEI? A: The spirit ofkeeping forging ahead, keep one's word. B: Craftsman's Spirit C: realistic D: innovation

2012年世界防治结核病日的主题是（） A: WHO宣传主题是“Forging New Partnerships to Stop TB”，我国的宣传主题是：“动员全社会，共同关注结核病”！ B: WHO宣传主题是“Every breath counts-Stop TB now”，我国的宣传主题是：“控制结核病，让每一次呼吸更健康”！ C: WHO宣传主题是“Stop TB in my life time”，我国的宣传主题是：“你我共同参与，消除结核危害”！ D: WHO宣传主题是“TB Anywhere is Everywhere”，我国的宣传主题是：“结核流行广泛，控制从我做起”！