Customer and saleswoman.

Neighbors.

Passenger and airline hostess.

Guest and receptionist.

能够恢复缺失牙的形态和功能

有良好的自洁作用

美观、舒适

具有良好的固位形和抗力形

有足够的机械强度、化学稳定性和良好的组织相容性

提出“向现代科学进军”的口号

知识分子的绝大部分已经是工人阶级的一部分

要更加充分地发展科学和利用科学技术

制定科学技术发展远景规划

Something

Everything

Nothing

Anything

A guest and a receptionist.

A passenger and an air hostess.

A customer and a shop assistant.

A lodger and a landlady.

病室温度在24℃左右

及时询问患者的感受

用指甲揉搓患者的头发和头皮

观察患者面色及呼吸有无改变

洗发时用棉球塞患者双耳、纱布盖眼睛

病室温度控制在24℃左右

水温为40～45℃

用指甲揉搓患者的头发和头皮

观察患者面色及有无不适

洗发时用棉球塞患者双耳，纱布盖双眼

A guest and a receptionist.

A passenger and an air hostess.

A customer and a shop assistant.

A guest and a waitress.

salary E. deserted I. equivalent M. destroyed

freely F. operation J. enrich N. certain

profitable G.amount K. fruitful O. cheaply

obtained H. payment L. equipment During the nineteenth and twentieth centuries, migrations have taken place within (1_______) countries; the cities with their industries have attracted people away from the country. The possibility of earning a fixed (2_______) in a factory or office was more attractive than the possibility of staying on the farm and having one's work (3_______) by frost, storms, or droughts. Furthermore, the development of agricultural machinery made it possible for fewer people to do the same (4_______) of work. Thus, at the same time when the industrial revolution made it possible to produce goods more (5_______) and more quickly in factories, agricultural revolution also took place. Instead of leaving fields empty every third year, farmers began to plant clover or some other crop that would (6_______) the soil. Instead of using only animal fertilizer, farmers began to use chemical fertilizers to keep the soil rich. These methods have enabled French farmers, for example, to get five times as much wheat as was (7_______) from the same land two centuries ago. In many countries farmers find it more (8_______) to raise only one crop or one kind of animal. They choose the kind that gives the best results. Then they sell all that they produce, instead of trying to grow a little of everything and consume what they grow. This is a more feasible type of (9_______) because modern methods and machinery are adapted to specific animals and specific crops. Therefore, it would be too expensive to do all the work by hand, or to buy the (10_______) needed for several different kinds of farming.