The two Chinese scientists have made a wonderful discovery, which marks a major _______ in the basic research in the field.
#13677
A
reform
B
approach
C
boundary
D
breakthrough
推荐题目
The official ________ to say more about the plan, so the details of it remain secret.
#11127
A
agreed
B
declined
C
attempted
D
declared
I knew that ________ would ever discourage him；he would never give up wanting to be a director.(2011·湖南)
#11607
A
something
B
anything
C
everything
D
nothing
While I was in the foreign country, my younger brother always ____ me of what was happening in big cities in time.
#10855
A
approved
B
accused
C
informed
D
warned