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【单选题】
Public speaking fills most people with dread. Humiliation is the greatest fear self-exposure and failing to appeal to the audience come a close second. Women hate it most, since girls are pressurized from an early age to be concerned with appearances of all kinds. Most people have plenty of insecurities, and this seems like a situation that will bring them out. If parents, teachers or peers mocked your foibles as a child, you fear a repeat. If you were under pressure to be perfect, you are terrified of failing in the most public of ways. While extroverts will feel less fear before the ordeal, it does not mean they will necessarily do it better. Some very shy people manage to shine. In fact, personality is not the best predictor of who does it well. Regardless of what you are like in real life, the key seems to be to act yourself. Actual acting, as in performing the scripted lines of a character other than yourself, does not do the job. While politicians may limit damage by having carefully rehearsed, written screeds to speak from, there is always a hidden awareness among the audience that the words might not be true. Although, as Earl Spencer proved at his sister Princess Diana's funeral, it is possible both to prepare every word and to act naturally. In script. rarely works and it is used as a crutch by most people. But, being yourself doesn't work either. If you spoke as if you were in your own kitchen, it would be too authentic, too unaware of the need to communicate with an audience. I remember going to see British psychiatrist RD Laing speak in public. He behaved like a seriously odd person, talking off the top of his head. Although he was talking about madness and he wrote on mental illness, he seemed to be exhibiting rather than explaining it. The best psychological place from which to speak is an unselfconscious self-consciousness, providing the illusion of being natural. Studies suggest that this state of 'flow', as psychologists call it, is very satisfying. Whether in normal life or making speeches, the key is to remind yourself that, contrary to what your teachers or parents may have implied, your best is good enough. In the zone, a strange place of authentic falsehood and shallow depth, play is possible. For most people the biggest fear for public speaking is ______.
A.
looking foolish
B.
failing in words
C.
not attracting attention
D.
appearing pressurized
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举一反三
【判断题】被积函数的分母次数较高时,可用 “倒代换”的方法A. 对 B. 错 C. 不确定
A.
正确
B.
错误
【多选题】有关传质,下列描述哪些是正确的?
A.
温度差和浓度差同时存在时,基本粒子之间的热运动可同时引起分子扩散传质和传导传热。
B.
本质上讲,质量传输是由体系中的化学势差引起的。
C.
分子扩散传质与热传导的实现,皆是依靠物体之间相接触时分子或原子(基本粒子)之间的热运动来实现的。
D.
菲克第一定律是一个描述表观现象的宏观经验式,同时反映扩散传质过程的微观特征。
【判断题】气体扩散现象的微观本质是气体分子数密度的定向迁移,而这种迁移是通过气体分子无规热运动来实现的.
A.
正确
B.
错误
【判断题】分子扩散的实质是分子的微观热运动
A.
正确
B.
错误
【单选题】我国绿色建筑法规体系不包括( )。
A.
绿色建筑评价标识制度
B.
绿色建筑监督检查
C.
绿色建筑标准体系
D.
绿色建筑全面调控
【判断题】被积函数的分母次数较高时,可以尝试使用倒代换求不定积分。
A.
正确
B.
错误
【判断题】绿色建筑一定是低碳建筑,智能建筑一定是绿色建筑。( )
A.
正确
B.
错误
【判断题】绿色建筑通过绿色施工完成,绿色施工成果一定是绿色建筑。( )
A.
正确
B.
错误
【简答题】实验探究和推理都是科学研究的基本方法比如科学猜想,往往是以一定的事实和已有知识为依据,通过推理而提出来的 (1)用放大镜观察素描炭笔的笔迹,观察到微小的颗粒;麦粒碾成面粉,面粉揉成面团……大量类似事实,为我们想象物质的结构模型提供了依据,终于认识到:______________是由大量分子构成的。向冷、热不同的清水中各滴一滴墨水。观察到墨水扩散的快慢不一样……大量类似现象使我们推想到:分子无规则运...
【单选题】在 平均值相同的情况下, 2PSK 、 2ASK 及 2FSK 信号最佳接收的误码率关系为 。
A.
2PSK < 2ASK < 2FSK
B.
2PSK < 2ASK=2FSK
C.
2PSK < 2FSK < 2ASK
D.
与信号波形有关,比较条件不充足。
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