According to the passage, which of the following descriptions of the Flint Hills is NOT right？
A. The Flint Hills, stretching 183 miles from north to south and about 30 to 40 miles wide, is located in the eastern part of America.
B. The Tallgrass Prairie National Preserve is part of the Flint Hills.
C. The Flint Hills's pastures about in cattle, deer and other animals.
D. The Flint Hills Overland Wagon Train can be found in Council Grove.
The food crisis revealed the global agricultural system as ______.
A. fragile
B. unresponsive
C. costly
D. unbearable
A．To combat competition and raise productivity.B．To provide them with more job opportu
A. To combat competition and raise productivity.
B. To provide them with more job opportunities.
C. To help them maintain their living standard.
D. To prevent them from holding a second job.
Certificates of deposits are not negotiable instruments.
A. 正确
B. 错误
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