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．To put the homework on Brain’s desk.B．To leave the master key for Brain.C．To give Brain’s students the next assignment.D．To call Brain at the end of the afternoon.
A．To put the homework on Brain’s desk.
B．To leave the master key for Brain.
C．To give Brain’s students the next assignment.
D．To call Brain at the end of the afternoon.
单项选择题
A．Because they don’t have time to wander off on their own.B．Because they cannot speak the foreign language.C．Because they have no chance to see the people as they really are.D．Because they don’t have interest at all.
A．Because they don’t have time to wander off on their own.
B．Because they cannot speak the foreign language.
C．Because they have no chance to see the people as they really are.
D．Because they don’t have interest at all.
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