教科书能够对大多数学生和大多数学校都适用，这体现了教科书的______。

单项选择题A small store owner can usually keep records（）

A. with difficulty
B. easily
C. without any help
D. without working

单项选择题After taking an inventory, if the owner found that he had got more money than he had spent, he made（）

A. a profit
B. a loss
C. an income
D. an interest

单项选择题According to the passage, a clothing store owner needs to keep records of the money he spends for（）

A. clothing only       
B. newspaper advertising
C. all necessary expenses   
D. housing

单项选择题Why do some foreign companies like to set up their plants in Brazil（）

A. The investment environment in Brazil is suitable for them.
B. They will not be severely punished if they cause pollution in Brazil.
C. They can make much money because they do not have to pay Brazilian workers much.
D. They can act in an irresponsible way in Brazil because there are no pollution laws there.

单项选择题How is the health of the population of Cubatao（）

A. There are more heart diseases among people who live near chemical factories.
B. More people suffer from lung diseases because of poisonous matter.
C. Their health is affected by pollutants the same way as that of other Brazilians.
D. Babies there are found not as bright as those who live in other places.