A．later
B．beforehand
C．afterwards
D．before
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"They said what we always knew," said an administration source, ______.
A．he asked not to be named
B．who asked not to be named
C．who asked not be named
D．who asked not named -
The writer implies that ______.
A．difficult operations can be successfully performed all over the world now
B．compared to the "third revolution" in surgery, the first two are less important
C．all patients can be cured by a gall bladder-removal operation
D．a new breakthrough has been made in surgery -
The word "it" （Line 3, Para. 1 ) refers to ______.
A．pipeline
B．ocean
C．state
D．village -
How long did it take the patient to resume her normal activity after the operation？
A．24 hours.
B．48 hours.
C．About a week.
D．Almost a month. -
Parents have to show due concerns to their children's creativity and emotional out-put; otherwise what they think beneficial to the kids might probably __ their enthusiasm and aspirations.
A．hold back
B．hold to
C．hold down
D．hold over