退休人员领取的平均养老金水平占在职职工平均收入水平的比例,一般称为()。
A.赡养率
B.抚养比
C.替代率
D.缴费率
参考答案:C
石油供应量减少,则汽油的价格()。
A.升高
B.不变
C.可能不变也可能变化
D.降低
It’s more than half a century ________ my grandfather joined the Party and became a servant to the people.
A.since
B.that
C.when
D.while