Scientists think they have _____ in their attempt to find the causes of some major dieases.
#81772
A
broken through
B
worked out
C
fallen out
D
got round
推荐题目
Wherever he goes ,the young man is able to readily____ himself to new environment.
#76703
A
include
B
contain
C
accommodate
D
hold
They suggested that the professor just now should be made chairman of the meeting.
#74038
A
referring to
B
referring
C
referred to
D
referred
According to the air traffic rules，you should your mobile phone before boarding．
#70302
A
switch over
B
switch on
C
switch off
D
switch round