（A） user-friendliness also implies that owners can service their own computers
（B） personal computers cost more the more user-friendly they are
（C） currently available models are user-friendly enough to suit them
（D） the people promoting personal computers use them in their own homes
（E） they have enough sensible uses for a personal computer to justify the expense of buying one
9.Which of the following best completes the passage below？
At a recent conference on environmental threats to the North Sea， most participating countries favored uniform controls on the quality of effluents， whether or not specific environmental damage could be attributed to a particular source of effluent. What must， of course， be shown， in order to avoid excessively restrictive controls， is that ___________.
（A） any uniform controls that are adopted are likely to be implemented without delay
（B） any substance to be made subject to controls can actually cause environmental damage
（C） the countries favoring uniform controls are those generating the largest quantities of effluents
（D） all of any given pollutant that is to be controlled actually reaches the North Sea at present
（E） environmental damage already inflicted on the North Sea is reversible
10.Which of the following， if true， best completes the argument below？
Comparisons of the average standards of living of the citizens of two countries should reflect the citizens' comparative access to goods and services. Reliable figures in a country's own currency for the average income of its citizens are easily obtained.But it is difficult to get an accurate comparison of average standards of living from these figures. because——。
（A） there are usually no figures comparing how much of two different currencies must be spent in order to purchase a given quantity of goods and services
（B） wage levels for the same job vary greatly from country to country，depending on cultural as well as on purely economic factors
（C） these figures must be calculated by dividing the gross national product of a country by the size of its population
（D） comparative access to goods and services is only one of several factors relevant in determining quality of life
（E） the wealth， and hence the standard of living， of a country's citizens is very closely related to their income
11.Which of the following， if true， is the most logical completion of the argument below？
The tax system of the Republic of Grootland encourages borrowing by granting its taxpayers tax relief for interest paid on loans. The system also discourages saving by taxing any interest earned on savings. Nevertheless， it is clear that Grootland's tax system does not consistently favor borrowing over saving， for if it did， there would be no——。
（A） tax relief in Grootland for those portions of a taxpayer's income， if any， hat are set aside to increase that taxpayer's total savings
（B） tax relief in Grootland for the processing fees that taxpayers pay to ending institutions when obtaining certain kinds of loans
（C） tax relief in Grootland for interest that taxpayers are charged on the unpaid balance in credit card accounts
（D） taxes due in Grootland on the cash value of gifts received by taxpayers from banks trying to encourage people to open saving accounts
（E） taxes due in Grootland on the amount that a taxpayer has invested in interest-bearing savings accounts
