.It’s the sort of work that  ____a high level of concentration. 
#82131
A
calls for
B
makes up
C
lies in
D
stands for
推荐题目
As is known to all, theory is based on practice and _____ serves practice.
#70919
A
in hand
B
in turn
C
in return
D
in exchange
——I’m sorry the traffic is so heavy.——Does that _____ why you are so late?
#76097
A
come across
B
believe in
C
focus on
D
account for
--Do you like the material?--Yes, it ___________ very soft.
#83429
A
is feeling
B
felt
C
feels
D
is felt
 The students are well _______ the exam. They are sure to get good marks.
#78457
A
prepared for
B
ready for
C
prepared
D
preparing