There’s no way of knowing why one man makes an important discovery ___ another man, also intelligent, fails.
#11912
A
since
B
if
C
as
D
while
推荐题目
Though Li Na didn't win the gold medal in Australian Open Tennis Championships 2013，her performance________higher praise.
#11955
A
brought up
B
brought about
C
brought in
D
brought out
—How about your trip to Hainan?—It couldn’t have been ________.Sometimes I went swimming in the sea；sometimes I lay on the sand.
#11017
A
so well
B
as bad
C
better
D
worse
My TV is out of order. Can you tell me the _________ news about the recent earthquake?
#12341
A
lately
B
later
C
latest
D
latter
Xinhua said the landslide not only _____ power and communications, it also caused death.
#13797
A
cut down
B
cut out
C
cut up
D
cut off
—How did your father smoking?—The doctor told him to do so，and he took the advice.
#12553
A
give in
B
bring in
C
give up
D
bring up