You have to be accurate in this job，because a small mistake can make a big ________.
#5449
A
difference
B
difficulty
C
trouble
D
change
推荐题目
The teacher has a(an) ___________ to get off topic; sometimes it is difficult for students to make out what he is saying.
#6189
A
concern
B
determination
C
intention
D
tendency
According to a UN report，one third of the world population have no to clean drinking water and health care.
#5879
A
means
B
approach
C
channel
D
access
She went to the bookstore and bought .
#7161
A
dozen books
B
dozens books
C
dozen of books
D
dozens of books
Due to the widespread________ of this medical technology, more diseases can be discovered and treated at an early stage.
#5388
A
presentation
B
application
C
qualification
D
appreciation