题目内容：

B

Data processing is a series of operations carried out on data on the purpose of getting information． ________ ．the information is the end or the output．The operations ________with different tools．Apart from a computer，the brain is ________ a data processing tool．Like a mini PC，the brain controls all bodily and mental________  ，as well as processes data．________apples and oranges differ in looks，feel，smell and taste，the brain can tell their differences．

There are three________ of processing data．In manual data processing，simple tools such as pencil are used．Electromechanical data one uses electrically operated machines．________ of the types of machines used are desk calculators and typewriters．Electronic data one uses computers processing data at a very high speed．

1.A．Since         B．Ever          C．Then            D．Therefore

2.A．preferred     B．performed     C．provided        D．practised

3.A．simply        B．even          C．also            D．yet

4.A．illnesses     B．disorders     C．functions       D．credit

5.A．As if         B．While         C．If only         D．In that

6.A．collections   B．levels        C．effects         D．tools

7.A．Examples      B．Features      C．Substances      D．Contents