函数y=xcosx是( )
A:奇函数
B:偶函数
C:既奇又偶
D:非奇非偶
In the past black people in South Africa ____(live) a miserable life. They could not vote to choose their ____(leader). They could not get jobs they wanted. The parts of town in which they had to live ____ (decide) by white people. They lived in the ____(poor) areas in the country and could not get jobs they wanted. Nelson Mandela, a modern hero, called black people ____ fight against white people to make black and white people equal. He said “We were put in a position ____we had either to accept we were less important,____ fight the Government. We chose to attack the law. We first broke the law____a way which was ____(peace); when this was not allowed…only then ____we decide to answer violence with violence.”
①要担负起自己应承担的责任 ②不同的角色有不同的责任
③未成年子女都要履行赡养父母的义务 ④要以爱和孝敬来报答父母的养育之恩
“北方吹来十月的风,惊醒我们苦兄弟。”与这句话直接有关的信息是