The improvements in the growth of rice involved which of the following?
A) the ability to create a double crop annually.
B) introducing a Vietnamese strain of rice.
C) the successful development of a higher-yield rice.
D) movement of people to the south.
E) all of these choices.
Correct Answer:
Verified
Q8: The Five Dynasties refers to the
A)fifty-three years
Q9: Which of the following are true of
Q10: Gunpowder weapons,used in the attack on Kaifeng,included
Q11: Which of the following statements is true
Q12: In addition to having been a past
Q14: What major political change was made by
Q15: Which of the following statements are true?
A)Within
Q16: Because superior cavalry was insufficient to defeat
Q17: Chinese coins,at this time,were round coins with
Q18: What were Li Qingzhao and her husband
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