Despite the proliferation of other faster modes of transportation, the railroads remain the largest carriers of intercity freight in the United States.

社会的迅速发展，物质文明和科学技术的不断进步，人们的欲求也不断增加。人际关系日益广泛和复杂，人们心理上产生的间題也越来越多。据世界卫生组织估计，有20%一30%的人有不同程度的心理异常，这是个不容忽视的间题。

请据此回答下列间题：

(1)人际交往的心理障碍主要有哪些? (7 分)

(2)如何有效地消除和调试人际交往中的心理障碍? (3 分)

How many people are aware that a dancer with the New York City Ballet typically wears out a minimum of two hundred pairs of toe shoes per year?

The fear of smallpox, which terrorized the eighteenth century, has no analogy(likeness) today.

试述亲密型人际关系的特点。

All living organisms, regardless of their unique identity, have certain biological, chemical, and physical characteristics in common.

试述人际认知的含意及其心理效应。

The flower bud of a water lily 百合 opens at sunset since .its opening is triggered(commence) .by the decreased light.

为什么说利益是人际关系的实质?

Food must be moist in order to have a taste.