计算题：已知：消费函数C＝40+0．75Y；投资I＝50。试求均衡时国民收入、消费储蓄。
参考答案：Y=360C=310S=50
Her excellent performance in the competition proved that she was a winner.
A．value
B．worthy
C．worth
D．worthwhile
酸中毒伴肝肾功能不全者不用（）。
A.乳酸钠
B.4％碳酸氢钠
C.THAM
D.钾
E.葡萄糖
