Which of the following statements is true？
A. Jon prefers drawing to coloring pictures.
B. Mrs. Johnson teaches drawing lessons.
C. Jon doesn't always follow teacher's directions.
D. Nobody enjoys coloring the pictures.
阿尔钦和德姆塞茨认为，企业的实质是一种()方式
A. 资源配置
B. “团队生产”
C. 产权
D. 交易
Why are there white rings on each end of the football？
A. To help players see the ball.
B. To make it look nice.
C. To help players score.
D. To help players run.
Why did the farmers need scarecrows？
A. The crops were dying.
B. They were lovely figures.
C. They need shade from the hot sun.
D. Crows ate their crops.
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