接地保护的三种类型是：（）、（）和（）。

肾静态显像不能用于直接显示（）。

A.先天性肾畸形

B.先天性肾缺如

C.肾萎缩

D.肾结石

E.肾脏位置异常

( )考虑了资金的时间价值因素。

A．动态指标

B．静态指标

C．盈利能力指标

D．清偿能力指标

造成求助者心理与行为问题的关键点的内涵是( )。

A．它是在个体中持久存在不随环境变化改变的形式

B．它是个别临床表现的原因或与表现有联系

C．该因素无论形式如何改变，其本身性质不变

D．在临床诊断中寻找关键点是相对重要的技能

具有工作可靠、平稳、无噪声、油膜吸振能力强等特点的机械装配，指的是( )。

A．滑动轴承装配
B．键连接
C．联轴节
D．螺栓连接的防松装置

Almost all our major problems involve human behavior, and they cannot be solved by physical and biological technology alone. What is needed is a technology of behavior, but we have been slow to develop the science from which such a technology might be drawn, (46) One difficulty is that almost all of what is called behavioral science continues to trace behavior to states of mind, feelings, traits of character, human nature, and so on. Physics and biology once followed similar practices and advanced only when they discarded them, (47) The behavioral sciences have been slow to change partly because the explanatory items often seem to be directly observed and partly because other lands of explanations have been hard to find. The environment is obviously important, but its role has remained obscure. It does not push or pull, it selects, and this function is difficult to discover and analyze. (48). The role of natural selection in evolution was formulated only a little more than a hundred years ago, and the selective role of the environment in shaping and maintaining the behavior of the individual is only beginning to be recognized and studied. As the interaction between organism and environment has come to be understood, however, effects once assigned to states of mind, feelings, and traits are beginning to be traced to accessible conditions, and a technology of behavior may therefore become available. It will not solve our problems, however, until it replaces traditional pre-scientific views, and these are ply entrenched. Freedom and dignity illustrate the difficulty. (49) They are the possessions of the autonomous (self-governing) man of traditional theory, and they are essential to practices in which a person is held responsible for his conduct and given credit for his achievements. A scientific analysis shifts both the responsibility and the achievement to the environment. It also raises questions concerning "values". Who will use a technology and to what ends (50) Until these issues are resolved, a technology of behavior will continue to be rejected, and with impossibly the only way to solve our problems.

(47) The behavioral sciences have been slow to change partly because the explanatory items often seem to be directly observed and partly because other lands of explanations have been hard to find.