已知点P(6,3)关于原点的对称P1点的坐标是______.
点P(6,3)关于原点的对称P1点的坐标是(-6,-3).
故答案为:(-6,-3).
下列业务种类中,不属于大额支付系统范围的是()。
A.汇兑
B.委托收款(划回)
C.托收承付(划回)
D.银行汇票
There are 5 star fathers in the TV program Dad, Where are we going, the Olympic Champion Tian liang ________.
A.contains
B.containing
C.including
D.included