a____; b____; c____
d____; e____; f____
g____; h____; i____.
赌博是一种恶习,对青少年有很大的危害,下列对赌博的认识错误的是( )
8:5读作____ ,____ 是比的前项,____ 是比的后项,比值是____ .
She was very friendly to __________.( )