Mr Green is very strict his students, and he is also strict his work.
A:in; with
B:with; in
C:with; with
D:in; in
△ABC中,∠C=60°,高BE经过高AD中点F,EF=1,则BF长为( )
下列关于节约能源的说法中,错误的是
对印度农业有重要影响的风向是( )