When in contact with hot surfaces, the material can___________ poisonous gases.

  A.give away           B.give up           C.give in               D.give off

In dealing with public relations, we should make every effort to prevent the______ in personality.

A. contact                  B. contrast                 C. connection                    D. conflict

 In the time of social reform, people’s state of mind tends to keep       with the rapid change of society.

A. contact       B. progress          C. touch               D. pace

In dealing with public relations,we should make every effort to prevent the __________ in personality.

A.contact        B.contrast              C.connection          D.conflict

In dealing with public relations, we should make every effort to prevent the______ in personality.

A. contact                  B. contrast                 C. connection                    D. conflict