已知2a﹣b=2，那么代数式4a2﹣b2﹣4b的值是（ ）
A：6
B：4
C：2
D：0
下列不属于中华民族传统美德的是（ ）
Police: What's in your wallet? Owner: There some money and two tickets for today's e-sports competition.
—What kind of home do you _____? — A flat _____ the centre of the city.
