Traffic and home heating were considered to be th

R－12 is generally considered to be a safe, nontoxic, nonflammable, and non－explosive refri

Nowcasts used to be impracticable because______.A．there were no conventional computersB．th

______ is considered to be the greatest dramatist in the 18th century in Britain.A．Henry F

The richness of our languages is considered by many to be the distinctive and crowing ach

The government has to consider whether the destruction of one human life can be______by th

Business and government leaders also consider the inflation rate to be an important genera