(2013·福建，28)Old－fashioned phones matter when wireless networks ________ in disasters.
#11560
A
turn down
B
turn out
C
break down
D
break out
推荐题目
After the new technique was introduced, the factory produced _______ cars in 2009 as 10 year before.
#14236
A
as twice as many
B
as many twice
C
twice more as
D
twice as many
Li Ping has decided to go abroad for further education with the ________ of improving his English and finding a better job when he returns.
#14186
A
intention
B
relation
C
devotion
D
attitude
Mr. Alexander doesn’t just write for fun; ______, writing is his bread and butter.
#13174
A
at last
B
in fact
C
in a word
D
as a result
Only then did I realize that it was foolish to ___ my friends and never contact them.
#13214
A
break away from
B
catch up with
C
look away from
D
put up with
We have to admit that the biggest___________ facing the ecosystem is limited resources and the worsening environment.
#12389
A
mission
B
challenge
C
scale
D
contribution