A:①②③
B:①②④
C:①③④
D:②③④
地球上的经线,正确叙述是( )
方程log3x+x=3的解所在的区间为( )
— _______ your brother a member of the basketball team?
— No, he_______ like playing basketball.
30-20=____
50-40=____
45-5=____
60-20=____