单项选择题

A．Small factories use little oil.
B．Small factories have less pollution.
C．Small factories need no electricity.
D．Small factories are more efficient.
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单项选择题
A．Teach Brain’s class while he’s absent.B．Give Prof. Smith the key to Brain’s office.C．Leave a message on the board in Brain’s office.D．Bring Brain the homework that was due today.
A．Teach Brain’s class while he’s absent.
B．Give Prof. Smith the key to Brain’s office.
C．Leave a message on the board in Brain’s office.
D．Bring Brain the homework that was due today.
单项选择题
A．Courses for doctors.B．Courses for business English.C．Courses for reporters.D．Courses for lawyers.
A．Courses for doctors.
B．Courses for business English.
C．Courses for reporters.
D．Courses for lawyers.
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