A:x<y<z
B:y<z<x
C:z<x<y
D:z<y<x
My daughter will call _______ as soon as she _______ Shanghai.
如图所示,当开关S闭合,甲乙两表为电压表时,两表的读数之比U甲:U乙为4﹕1,当开关S断开,甲乙两表为电流表时,两表的读数之比I甲:I乙为( )
①CH3CH2OH② ③CH3CH2Br④ ⑤ ⑥ ⑦ ⑧ ⑨ ⑩
方程2x-3=3x的解是 ____.