They have long had to deal with a series of faults and viruses.【D1】 1now users of Internet Explorer have another reason to【D2】 2ashamed—they are more stupid too. A study has【D3】 3that those with Internet Explorer 6 installed on their computer typically have an IQ barely【D4】 4than 80—which by some rankings makes them almost retarded(智力发育迟缓的). This【D5】 5to those who used Fire fox or Google's Chrome who came in at around 110. Users of Opera or Camino were【D6】 6with an IQ of around 120. A ranking of a mere 80 might【D7】 7why millions of people around the world continue to use Internet Explorer even though it is a(n) 【D8】 8web browser. Some 10 percent of computers are thought to have the software installed on their【D9】 9or office computer. The study, by Vancouver-based psychometric(心理测量的)consulting company AptiQuant, examined IQs which is a measurement of a person's intelligence worked out on the【D10】 10of special tests. The average is 100. AptiQuant polled 101 326 people aged 16 from countries including the US, Canada, and New Zealand. Subjects were asked to take an intelligence test which recorded their operating system and location via their IP address. A ranking of 70~80 is seen as borderline retarded, while 80~90 is below average. A)inferior F)lower K)So B)top G)good L)explain C)higher H)feel M)home D)found I)see N)compares E)But J)basis O)removed 【D1】