读图，回答下列各题。
小题1:关于图中北回归线穿过的地区的地势、河流特点的描述，正确的是
A．a—地势低洼，水系发达
B．b—中间高四周低，无流区广
C．c—中间低四周高，向心水系
D．d—山河相间，纵列分布小题2:关于图中字母所在地区优势自然资源的叙述正确的是
①a、b油气丰富 ②c、d锡矿资源丰富 ③d、e水能资源丰富 ④a、e森林资源丰富
A ①② B ②③ C ①④ D ①③
小题1:D
小题1:D
| Some pioneering work that began as an attempt to discover ways to increase production efficiency led to the founding of the human relations movement in industry and to the development of motivational skills and tools for managers. In 1927 researchers were involved in determining the optimum amount of lighting, temperature, and humidity (with lighting being considered the most important) for the assembly of electronic components at Western Electric. The researchers found that lighting had no consistent effect on production. In fact, production sometimes increased when lighting was reduced to the level of ordinary moonlight! The important part of this experiment began when two Harvard researchers, Elton Mayo and Fritz Roethlisberger, were brought in to investigate these unexpected results further. They found that workers were responding not to the level of lighting but to the fact that they were being observed by the experimenters. This phenomenon came to be known as the Hawthorne effect since the experiments were conducted at the Western Electric Hawthorne Plant. This was the first documented and widely published evidence of the psychological effects on doing work, and it led to the first serious effort aimed at examining psychological and social factors in the workplace. Further experiments were continued for five years. Generally, the researchers concluded from their experiments that economic motivation (pay) was not the sole source of productivity and, in some cases, not even the most important source. Through interviews and test results, the researchers focused on the effects of work attitudes, supervision, and the peer group and other social forces, on productivity. Their findings laid the groundwork for modem motivation theory, and the study of human factors on the job, which continues to this day in such common practices as selection and training, establishing favorable work conditions, counseling, and personnel operations. The contributions of this experiment shifted the focus of human motivation from economics to a multifaceted approach including psychological and social forces. |
The research became known as the "Hawthorne effect" because
A．it was the name of the plant where the study was conducted
B．it was the name suggested by the Harvard researchers
C．it was the name of the principal experimenter
D．There were Hawthorne plants growing at Western Electric where the study was conducted