[单项选择]An industrial society, especially one as centralized and concentrated as that of Britain, is heavily dependent on certain essential services: for instance, electricity supply, water, rail and road transport, the harbours. The area of dependency has widened to include removing rubbish, hospital and ambulance services, and, as the economy develops, central computer and information services as well. If any of these services ceases to operate, the whole economic system is in danger.
It is this interdependency of the economic system which makes the power of trade unions such an important issue. Single trade unions have the ability to cut off many countries’ economic blood supply. This can happen more easily in Britain than in some other countries, in part because the labour force is highly organized. About 55 per cent of British workers belong to unions, compared to under a quarter in the United States.
For historical reasons, Britain’s unions have tended to develop along trad
A. The economy is very interdependent.
B. Unions have been established a long time.
C. There are more unions in Britain than elsewhere.
D. There are many essential services.