单项选择题

A rise in the level of unsold products (inventories) indicates:

A．Total income is greater than total expenditure
B．Investment is greater than savings
C．Total expenditure is greater than total income
D．Economic activities is growing

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热门试题

单项选择题湿式自动喷水灭火系统中压力开关的主要作用是 A、将水流信号反馈至控制中心 B、打开湿式报警阀组 C、启动消防水泵 D、启动水力警铃动作

单项选择题预防医学没什么技术含量。（）

A．对
B．错