单项选择题

A．It’s a new way of applying chemical fertilizer.
B．It’s an improved method of harvesting crops.
C．It’s a creative technique for saving labor.
D．It’s a farming process limiting the use of ploughs.
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单项选择题
A．Packing up to go abroad. B．Brushing up on her English. C．Drawing up a plan for her English course. D．Applying for a visa to the United States.
A．Packing up to go abroad.
B．Brushing up on her English.
C．Drawing up a plan for her English course.
D．Applying for a visa to the United States.
单项选择题
A．Two thousand feet. B．Twelve thousand feet. C．Twenty thousand feet. D．Twenty-two thousand feet.
A．Two thousand feet.
B．Twelve thousand feet.
C．Twenty thousand feet.
D．Twenty-two thousand feet.
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