Just don't know why? Pls Help! THANKS~
LUXIN SC LOOSE-LEAF MATERIALS
9.South Korea has witnessed the world's most dramatic growth of Chirstian congregations; church membership is expanding by 6.6 percent a year, fully two-thirds of the growth {coming from conversions rather than the population increasing}.
(A)coming from conversions rather than the population increasing
(B)coming from conversions rather than increases in the population
(C)coming from conversions instead of the population's increasing
(D)is from conversions instead of the population increases
(E)is from conversions rather than increasing the population
A):B [SEC.2 SENTENCE CONSTRUCTION]
10.Someday computers may be able to "see" forms, just as they now can be made to recognize voices, a problem of perception {that is similar to artificial vision, but the solution has proved easier.}
(A)that is similar to artificial vision, but the solution has proved easier.
(B)that is similar to artificial vision but one that has proved easier to solve
(C)similar to that of artificial vision but it has proved easier to solve
(D)similar to that of artificial vision, but the solution has proved easier.
(E)similar to that of artificial vision but one that has proved easier to solve
A):E [SEC.2 SENTENCE CONSTRUCTION]
11.Many nursery schools in New York City now interview two year olds and report {that applications outnumber openings by as much as 5 to 1.}
(A)that applications outnumber openings by as much as 5 to 1
(B)that applications outnumber openings up to 5 times
(C)applications in excess of openings by up to 5
(D)applications over th number openings by up to 5 to 1
(E)a surplus of applications over openings of as much as 5 times
A):A [SEC.2 COMPARATIVE STRUCTURE]
12.An inventory equal to 90 days sales is {as much as even} the strongest business carry, and then only as away to anticipate higher prices or ensure against shortage.
(A)as much as even
(B)so much as even
(C)even so much as
(D)enen as much as that
(E)even so much as that
A):A [SEC.2 COMPARATIVE STRUCTURE]fficeffice" />

1.at any time in contrast,rather than is better than instead of ,and "increase in ..."is a fixed word.
2.the word"solution "has no reference ,so the correct answer is probably B or E,but "the prblem of perceptionis" the problem of computer,and the problem is not the "artificial version" but the problem of "artificial version",so the correct answer is the E.
3.I selected the wrong answer B too,but I think CDEis too complicated ,B IS WRONG MAYBE BECAUSE IT CAN NOT EXPRESS THE CONTRAST CLEARLY.
4.the position of the word "even can not be changed or the meaning will change too,and B so much as is used in negative sentence.so the correct answer is A.fficeffice" />