A:and
B:but
C:so
D:or
用“辗转相除法”求得456和357的最大公约数是( )
— Liu Xiang won the 110-meter hurdling gold at the 11th National Games again.
— He is always a super star in my heart. Congratulations to him.
欲将98%的浓硫酸配置成20%的稀硫酸,下列仪器可不选用的是( )