答案是：is the Chairman of the House of Commons， who is elected by a vote of the House at the beginning of each new Parliament to preside over the House and enforce the rule of order. Mr. Speaker must be impartial in carrying out his duties. He or she cannot debate or，as general rule，vote on a measure，and he or she sees that all points of view have a fair hearing.
答案是：was issued by President A. Lincoln in on September 22， 1862，which would liberated all slaves of the seceded states that refused to return to the Union before the Proclamation went into effect on January 1，1863. It was one of the most important measures taken by Lincoln's Administration in 1862 in order to change the situation of the Civil War.
答案是：Monroe Doctrine was delivered to Congress by President James Monroe in 1823，in which he warned the European powers against any attempt at intervention in Latin American affairs with the aim of keeping the Latin American countries for the United States itself.
答案是：The Central Intelligence Agency was set up in 1947. Its headquarters is located in Langley, Virginia, USA. Its activities have included collecting information from abroad，instances of subversion，interference, and attempting to control other countries. Its organization，budget and personnel are kept secret.
