A serious study of physics is impossible________some knowledge of mathematics.(2013·大纲全国,31)
#25263
A
against
B
before
C
beyond
D
without
推荐题目
Whenever you are _____ , you can ask us for help.
#71239
A
in ruin
B
in reward
C
in trouble
D
in turn
Is this one different ________ that one ________ color?
#25965
A
in; in
B
from; from
C
from; in
D
in; from
Roads in this mountain area used to be_______; people found it hard to travel here. 
#26202
A
in poor conditions
B
in the poor condition
C
in poor condition
D
in a poor condition