单项选择题

This passage states that a person is really asleep only __________.

A．after experiencing a jerk
B．when his EEG reveals no alpha rhythm
C．after the completion of his alpha rhythm
D．when his EEG begins to show an alpha rhythm

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热门试题

单项选择题

Targeting children for advertising is controversial because children __________.

A．are unable to analyze and judge advertisements
B．are unable to give consent since they are too young
C．often give off information that may be dangerous to them
D．are not ready to evaluate advertisements or information requests

单项选择题

According to the first paragraph, children as an Internet market __________.

A．are becoming increasingly rational
B．are using it at an earlier and earlier age
C．has created a growing advertising market
D．are overtaking the adult market due to their spending power