看下面的图表并完成下列句子。Legend：A=Systems

题目描述

看下面的图表并完成下列句子。Legend：A=Systems analysts B=Programmers C=Computer and peripheral equipment operators D=Keypunch operators E=Computer service technicians1.In 1970，which computer occupation employed the most people?How many people?______2.Which computer occupation employed the most people in 1980?How many people?______3，In what year were the fewest programmers employed?______How many programmers?______4.Which computer field is projected to decrease in 1990?______5.Which computer occupation is prrojected to employ the most people in 1990?______6.Which computer occupation will employ 400 000 people in 1990?______