Sound travels ______ air ______ a speed of about 340 metres per second.
#47987
A
over; in
B
through; at
C
by; at
D
through; over
推荐题目
They will arrive _______ Guangzhou _______ the ninth of July.
#48978
A
at, at
B
in, in
C
in, on
D
to, on
My father is strict _________ me and also _________ his work.
#46991
A
with, with
B
with, about
C
with , in
D
in, with
.Liu Xiang came third ______ the 110-meter-hurdle race last month in Shanghai.
#51256
A
in
B
from
C
across
D
through
This pair of boots looks very beautiful. Can I try ___________?
#46322
A
it in
B
on them
C
them on
D
on it