Scientists have to work hard to keep ________ with modern discoveries and developments..
#5975
A
company
B
track
C
touch
D
pace
推荐题目
We Nanjingers should try our best to make to the Nanjing 2014 Youth Olympic Games.
#5314
A
differences
B
contributions
C
advances
D
records
The school advisers help you talk through your problems but they don’t give you any direct ______.
#5297
A
solution
B
target
C
measure
D
function
.Lily succeeded, for she had made the greatest _________ and got over plenty of difficulties.
#7082
A
force
B
strength
C
effort
D
energy
AIDS control and prevention is a to China as well as the whole world.
#6429
A
surprise
B
challenge
C
reaction
D
threat