His latest research is at the of genetic science.
#5898
A
maiden voyage
B
cutting edge
C
focus group
D
daily basis
推荐题目
Human life is everywhere a ____ in which much is to be endured and little to be enjoyed..
#6333
A
case
B
condition
C
position
D
state
Ten years had passed. I found she had _______.
#7234
A
a few white hairs
B
a little white hair
C
some white hair
D
more fifty hair
—I’m going to Beijing tomorrow.—What a ______! I’m going there too.
#6528
A
opportunity
B
luck
C
coincidence
D
danger
We should make a careful study of his____.
#7357
A
useful teaching experiences
B
useful teaching experience
C
usefully teaching experiences
D
usefully teaching experience