单项选择题

A．Crop production became increasingly specialized.
B．Economic depressions lowered the prices of farm products.
C．New banking laws made it easy to buy farmland.
D．The United States increased its agricultural imports.
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单项选择题
A．It will make workers less productive. B．It’s hard to be given in the modern factory. C．It will increase criminal rates. D．It’s very difficult to control the workers.
A．It will make workers less productive.
B．It’s hard to be given in the modern factory.
C．It will increase criminal rates.
D．It’s very difficult to control the workers.
单项选择题
A．They hired someone to stay in their home. B．They left their pets with their relatives. C．They rented their house to a student. D．They asked their secretary to watch their home.
A．They hired someone to stay in their home.
B．They left their pets with their relatives.
C．They rented their house to a student.
D．They asked their secretary to watch their home.
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