(2013·高考福建卷)Old­fashioned phones matter when wireless networks ________in disasters.
#11939
A
turn down
B
turn out
C
break down
D
break out
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We know that the Black Sea, one thousand years ago, was a fresh water lake about ________ and unconnected with the Mediterranean.
#14224
A
its two thirds present size
B
two-thirds size of the present
C
its two-thirds of the present size
D
two- thirds its present size
The old man was the only person on the spot____ helped him ____ a series of facts as told
#12665
A
who, set up
B
who ,set down
C
which ,set out
D
that, set off