“the big economic difference between nuclear and fossil-fuelled power stations is that nuclear reactors are more expensive to build and decommission, but cheaper to sun. so disputes over the relative efficiency of the two systems revolve not just around prices of coal and uranium today and tomorrow, but also around the way in which future income should be compared with current income.”
1. the main difference between nuclear and fossil-fuelled power stations is an economic one.
2. the price of coal is not relevant to discussions about the relative efficiency of nuclear reactors.
3. if nuclear reactors were cheaper to build and decommission than fossil-fuelled power stations, they would definitely have the economic advantage.
“at any given moment we are being bombarded by physical and psychological stimuli competing for our attention. although our eyes are capable of handling more than 5 million bits of data per second, our brain are capable of interpreting only about 500 bits per second. with similar disparities between each of the other senses and the brain, it is easy to see that we must
select the visual, auditory, or tactile stimuli that we wish to compute at any specific time.”
4. physical stimuli usually win in the competition for our attention.
5. the capacity of the human brain is sufficient to interpret nearly all the stimuli the senses can register under optimum conditions.
6. eyes are able to cope with a greater input of information than ears.
(1)c cannot say
(4)c cannot say
(6)c cannot say
part ii numercal test
1.which country had the highest number of people aged 60 or over at the start of 1985?
2.what percentage of the total 15mm button production was classed as sub-standard in september?
aa 10.5% bb 13% cc 15% dd 17.5% ee 20% ab 23.5% ac 25%
ad 27.5% ae 28% bc 30.5%
3. how many live births occurred in 1985 in spain and italy together (to the nearest 1000)?
a. 104 000
b. 840 000
c. 1 044 000
d. 8 400 000
e. 10 440 000
4. what was the net effect on the uk population of the live birthand death rates in 1985?
a. decrease of 66 700
b. increase of 752 780
c. increase of 84 900
d. cannot say
e. increase of 85 270
5. by how much did the total sales value of november‘s button production vary from october‘s?
a. 8.50 (decrease)
b. 42.50 (decrease)
c. 85.00 (increase)
d. 27.50 (decrease)
e. no change
6. what was the loss in potential sales revenue attributable to the production of sub-standard (as opposed to standard) buttons over the 6 month period?