6 The reliability of robots is measured in their M.T.B.F. or mean time between failures. This has risen from about 250 hours in the mid-1970s to about 10,000 hours today . One way robot manufacturers have increased reliability is to test every single component they buy, instead of the normal procedure of just testing a small sample.
7 The biggest single benefit of introducing robots claimed by Japanese companies is that they increase quality control. Once programmed, the robots can work more accurately and consistently than humans, who can get tired and bored.
23 Paragraph 2
24 Paragraph 3
25 Paragraph 5
26 Paragraph 6
A.Ongoing Research
B.Extension of Use
C.Robot Heroes
D.Greater Reliability
E.Falling Demand
F.Hidden Danger
27 Even the most sophisticated Japanese robots are
28 Robots are less popular in Britain today partly because
29 One disadvantage of using robots is that they consume
30 It is claimed that introducing robots is
A.too much energy
B.based on American designs
C.they are too costly
D.they are not reliable
E.good to quality control
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