【简答题】将下列短文译成中文: The unit which performs the pulse code modulation and demodulation of the signals in a digital transmission system is called a coder-decoder, or in abbreviated form, a codec. In early digit...
【简答题】Normally a business letter consists of ______parts and _______ parts. Business letters usually have ________giving information about the company. The ____ is mostly written below the letterhead and sh...
【简答题】“Great Britain” is the collective name for the three countries of England, Scotland and _____. 2. The name of the British National Anthem is _____. 3. “ ” is the abbreviated form for the official name...
【简答题】“ ” is the abbreviated form for the official name “The United Kingdom of Great Britain and Northern Ireland”, which came into use in 1922 after the constitution of the Irish Free State (1922-1937), th...