单项选择题
A．Have a clear self-positioning strategy. B．Focus more on pricing strategies. C．Look for more marketing options. D．Specialize in customer service.
A．GM crops are good to wildlife in America. B．conventional crops require more chemicals for protection. C．one study shows that GM crops are harmful to animals. D．GM foods have done no harm to Americans.
A．the strike was planned in the spirit of Taft Vale. B．the trade union would stage the strike as a threat to British Airways. C．the strike would be an absolute disgrace to British Airways. D．union members were not properly informed of the results of the strike ballot.