若抛物线y=x2-(m-3)x+2的对称轴为y轴,则m=______.
由题意可得:
抛物线y=x2-(m-3)x+2的对称轴为x=m-32,
∵对称轴为y轴,即x=0,
∴m=3.
法律规定的公安权力,只能由( )行使,其他任何机关、团体和个人均无权行使这些权力。
A.公安机关 B.人民警察C.公安机关及其人民警察 D.国家权力机关和司法机关
My sister was against my suggestion while my brother was________it.[ ]
A.in favour of
B.in memory of
C.in honour of
D.in search of