[填空题]By now four communications zones for aircraft have gone into action, each of which is covered by one operational satellite and several back-ups.

[填空题]By now four communications zones for aircraft have gone into action, each of which is covered by one operational satellite and several back-ups.

[单项选择]Passage Four Have you ever been afraid to talk back when you were treated unfairly Have you ever bought something just because the salesman talked you into it Are you afraid to ask someone for a date Many people are afraid to assert themselves (坚持已见). Dr. Robert Alberti, author of Stand Up, Speak Out, and Talk Back, thinks it’s because of their lack of confidence. "Our structure of organization tends to make people distrust themselves," says Alberti. "There’s always a ’superior’ around—a parent, a teacher, a boss—who knows better’. These ’superiors’ often gain when they keep breaking at your self-image." But Alberti and other scientists are doing something to help people assert themselves. They offer "assertiveness training" courses—AT for short. In the AT course people learn that they have a right to be themselves. They learn to speak out and feel good about doing so. They learn to be aggressive without hurting people. In one way, learning to speak out is to overc
A. they have a poor self-image
B. they have not received AT courses
C. they have not grasped communication skills
D. they are not generous enough to share things

[单项选择]Passage Four