Several SC Qs from Taiwanese Cram School~

以下是引用fernandochang在2003-4-8 22:42:00的发言：
Asked for explanations ~ pls!!!!! Thanks for your help!

15.Never before had taxpayers confronted {so many changes at once as they had in} the Tax Reform Act of 1986.
(A)so many changes at once as they had in
(B)at once as many changes as
(C)at once as many changes that there were with
(D)as many changes at once as they confronted in
(E)so many changes at once that confronted them in

16.It is as diffcult to prevent crimes against property as {those that are against a} person.
(A)those that are against a
(B)those against a
(C)it is against a
(D)preventing those against a
(E)it is to prevent those against a
A):E  [SEC.2 COMPARATIVE STRUCTURE]

17.American productivity is declining in relation to Europe's; the energy expended per unit of  production in the US is {as much as twice that expended in West Germany}.  
(A)as much as twice that expended in West Germany
(B)as much as twice that of  West Germany's expenditure
(C)up to two times of West Germany's expenditure
(D)up to two times what West Germans expended
(E)up to double the West German expenditure
A):A    [SEC.2 COMPARATIVE STRUCTURE]

18.Most corporations pay at least twice as much to full-time employees, if the value of benefits, sick days, and paid vacations days {are included in earnings, than} to part-time employees, whose hourly wages are often higher than those of their full-time colleagues.   
(A)are included in earnings, than
(B)are included in earnings, as
(C)is included in earnings, than they pay
(D)is included in earnings, as is paid
(E)is included in earnings, as they pay
A):E    [SEC.2 COMPARATIVE STRUCTURE]

19.In 1980 the United States exported {twice as much of its national output of goods as they had} in 1970.  
(A)twice as much of its national output of goods as they had
(B)double the amount of thier national output of goods as they did
(C)twice as much of its national output of goods as it did
(D)double the amount of its national output of goods as it has
(E)twice as much of their national output of goods as they had
A):C    [SEC.2 COMPARATIVE STRUCTURE]

20.Salt deposits and moisture threaten to destroy the Mohengo-Daro excavation in Pakistan, the site of an ancient civilization {that flourished at the same time as the civilizations} in the Nile delta and the river valleys of the Tigris and Euphrates.
(A)that flourished at the same time as the civilizations
(B)that had flourished at the same time as had the civilizations
(C)that flourished at the same time those had
(D)flourishng at the same time as those did
(E)flourishing at the same time as the those were
A):A   [SEC.2 COMPARATIVE STRUCTURE]

21.Because young children do not organize their attention or perceptions systematically, {like adults}, they may notice and remember details that their elders ignore.
(A)like adults
(B)unlike an adult
(C)as adults
(D)as adults do
(E)as an adult
A)   [SEC.2 COMPARATIVE STRUCTURE]

22.According to the report of the UN Conference on Desertification, {deserts worldwide are claiming an area each year the size of Maine’s.}
(A)deserts worldwide are claiming an area each year the size of Maine’s
(B)each year deserts throughout the world claim an area the size of Maine
(C)deserts throughout the world claim an area equal to Maine each year
(D)worldwide deserts each year are claiming an area equal to Maine
(E)each year worldwide deserts claim an area the size of Maine’s

以下是引用山峰在2003-4-9 22:13:00的发言：
siebel bro,
Good job!
You are somewhat S/C expert now!

22.According to the report of the UN Conference on Desertification, {deserts worldwide are claiming an area each year the size of Maine’s.}
(A)deserts worldwide are claiming an area each year the size of Maine’s
(B)each year deserts throughout the world claim an area the size of Maine
(C)deserts throughout the world claim an area equal to Maine each year
(D)worldwide deserts each year are claiming an area equal to Maine
(E)each year worldwide deserts claim an area the size of Maine’s