【单选题】下列陈述中,属于社会养老保险特点的是().
A.
老年人控制财产,对大家庭收入和风险进行集中调节,以承担保险责任(家庭养老保障)
B.
具有理智的人可以合理安排一生收入,以备年老之需(家庭)
C.
政府、雇主和个人共同筹集资金,并以多种方式经营
D.
由市场解决老年基本生活问题,政府弥补及纠正市场失败因素造成的不良影响(国家养老)
【单选题】z=ysin(x+y)在点(1,0)的全微分为()。
【单选题】The process to be aborted is chosen on the basis of the following factors?
A.
priority of the process
B.
process is interactive or batch
C.
how long the process has computed
【单选题】Wise people have focused the process rather than the result as it is in the process ______ we learn and grow. [ ]