早期的市场营销学，其内容主要局限于生产领域，真正的市场营销观念尚未形成。 ()
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People concentrate very carefully while they are watching TV.
A. True
B. False
The second paragraph used facts to develop the essential idea that ______.
A. a plant efficiently utilizes most of the water it absorbs
B. carbon dioxide is the essential substance needed for plant development
C. a plant needs more water is found in its composition
D. the stronger the wind, the more the water vapor loss
What's important in training a parrot？
A. The energetic owner's help.
B. The trainer's patience.
C. Daily talks and feeding.
D. More care and proper diet.
Parents believe that television provides their children with good role models.
A. True
B. False
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