Reasonable analysis as well as imagination is           scientific discoveries.
#70180
A
applied to
B
appealed to
C
attempted to
D
attached to
推荐题目
They always communicated with each other on the Internet, but they never met him _______. 
#76211
A
back to back
B
heart to heart
C
face to face
D
side to side
Some doctors suggest that vinegar will ____ people from being infected ___ H1N1.
#70194
A
protect; to
B
prevents; from
C
prevent; with
D
protect; in
We have a high regard for Mr. Smith because he always tries to _____________his principles.
#71093
A
look forward to
B
live up to
C
keep up with
D
put up with