He started to work dilligently _____ he came up with the idea of hybrid rice for the first time in the 1960’s. 
#26969
A
at once
B
the moment
C
for the moment
D
in no time
推荐题目
—Do you often go fishing at weekends?—Not often,I only go fishing________.
#25253
A
at one time
B
all the time
C
at a time
D
from time to time
Children are likely to get _____ if no one cares about their upbringing.
#29162
A
out of hand
B
out of order
C
out of place
D
out of work
Everyone in this country enjoys the same right ________ religion, race or sex.
#27398
A
regardless of
B
in view of
C
in spite of
D
in case of