51.The economic policy Britain pursued in the 1950，and 1960s was based on the theory of_______.

A.Adam Smith B.John M.Keynes C.Margaret Thatcher D.Karl Marx

52.Under Margaret Thatcher Britain experienced_________.

A.economic recession

B.economic expansion

C.economic decline

D.economic depression

53.The Houses of Parliament were between 1835 and______to the design of Sir Charles Barry after having been destroyed by fire.

A.1857 B.1858 C.1859 D.1860

54.The public are admitted to______in the House of Lords and the House of Commons.

A.the Stranger's Galleries

B.the Press Gallery

C.the Woolsack

D.the Speaker's Chair

55._______is responsible for security accommodations and services in the House of Lords'part of the Palace of Westminster.

A.The Lord Chancellor

B.The Gentleman Usher of the Black Rod

C.The Speaker

D.The Clerk of the Parliaments