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Jumping out of _____ airplane at ten thousand feet is quite ______ exciting experience .
#9303
A
不填;the
B
不填;an
C
an;an
D
the;the
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 I don’t think the experiment is ______ failure. At least we have gained ______ experience for future success.  
#10382
A
不填;the
B
a; the
C
a ; 不填
D
不填; 不填
Many people have realized that they should go on _______ healthy diet and lose_______ weight after the Spring Festival.
#8688
A
a;/  
B
the;the
C
/;the
D
/;a
I don’t know who invented __________ telescope, but I think it is __________ most useful invention.
#9523
A
the, the
B
the, a
C
a, the
D
a, a
.The development of industry has been________gradual process throughout________human existence,from stone tools to modern technology.                   (2012·浙江,2)
#7774
A
/;the
B
the;a
C
a;/
D
a;a
Experts believe that ________ warm and comfortable bath seems to be a perfect way for a patient to recover from ________ fear of losing control of himself.
#8322
A
a; the
B
the; /
C
a; /
D
the; a
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