单项选择题

A. The yield of crops has increased.
B. The yield of crops has decreased.
C. The crops have grown faster than before.
D. The mineral and protein content of the crops have been less.
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单项选择题
A. It was the rich who first drank tea. B. Monks drank tea to quench their thirst. C. The history of tea-drinking is very short. D. The history of tea-drinking was originated with Buddhism.
A. It was the rich who first drank tea.
B. Monks drank tea to quench their thirst.
C. The history of tea-drinking is very short.
D. The history of tea-drinking was originated with Buddhism.
单项选择题
A. Because he is preparing for a global tour. B. Because he is preparing for a geography class. C. Because he wants to find the location of China. D. Because he wants to draw a picture of all the countries.
A. Because he is preparing for a global tour.
B. Because he is preparing for a geography class.
C. Because he wants to find the location of China.
D. Because he wants to draw a picture of all the countries.
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