TheLibrary of Congress in Washington D. C., which houses the largest collection ofbooks in the world, is
fightinga battle against paper deterioration. The pages
 

67. A)seldom
B)rarely
C) never
D) sometimes
68.
A) rubbed
B)seized
C) touched
D) scratched
69.
A) acidic
B) printing
C) cotton
D) raw
70. A)was used to
B) hasbeen used to
C) has been used for
D) used to
71. A) contributed
B) added
C) led
D) pointed
72.
A) very
B) much
C) most
D) incredibly
73. A) among
B) in
C) with
D) on
74.
A) of
B) in
C) from
D) by
75.
A) low
B) sufficient
C) plenty
D) rare
76. A) pressed
B ) deteriorated
C) finished
D) printed
77.
A) circumstances
B ) conditions
C) environment
D) shape
78.
A) literacy
B ) poverty
C) books
D) famine
79.
A) numerous
B ) countless
C) plentiful
D) sufficient
80.
A) handled
B ) dealt
C) treated
D) soaked
81.
A) which
B ) that
C) what
D) where
82.
A) worry
B ) anxiety
C) concem
D) stress
83. A) experience
B)finding
C)search
D)research
84. A)invented
B)innovated
C)developed
D) researched
85. A)there
B) it
c) they
D) that
86. A)technologies
B)facilities
C)innovations
D) materials

點(diǎn)擊進(jìn)入：英語四級(jí)網(wǎng)校，免費(fèi)試聽大學(xué)英語四級(jí)高清課程>>

查看試題：2013年6月大學(xué)英語四級(jí)備考沖刺專題
預(yù)測(cè)作文：2013年6月英語四級(jí)預(yù)測(cè)作文范文匯總
歷年真題：1999年-2012年英語四級(jí)真題匯總