会计主体可以是一个企业，也可以是企业内部的某一单位或企业中的一个特定部分。（）
参考答案：对
Winthur Publishing Company invests $ 800000 in a printing press that will be depreciated on a straight-line basis over four years and will have a zero salvage value at the end of its life. Sales revenues, operating expenses, and net income for each year are shown in the table below.（）
A.$18.75
B.$15.75
C.$12.75
能创造洁净空气环境的各种技术总称为（）技术。
