简述波能流。

Good tool design is important in the prevention of overuse injuries. Well-designed tools and equipment will require less force to operate them and prevent awkward（别扭的）hand positions. They will allow the worker to keep the elbows（肘）next to the body to prevent damage to the shoulder and arm.
Overuse injuries can therefore be prevented or reduced if the employer provides, and workers use:
●power tools rather than having to use muscle（肌肉）power
●tools with specially designed handles that allow the wrist（手腕）to keep straight （See figure 1）. This means that hands and wrists are kept in the same position as they would be if they were hanging relaxed at a person’s side

Figure1. Bend the tool, not the wrist
●tools with handles that can be held comfortably by the whole hand. This means having a selection of sizes—remember that tools that provide a comfortable firm Hold for a person with a very large hand may be awkward for someone with a very small hand. This is a particularly important consideration for women who may use tools originally designed for men.
●tools that do not press fingers (or flesh) between the handles, and whose handles do not have sharp edges or a small surface area.
60. What is the best title for the passage?
A. Good tool Design for Women                        B. Importance of Good Tool Design
C. Tool Design and Prevention of Injuries           D. Overuse of Tools and Worker Protection
61. Which of the following describes a well-designed tool?
A. It’s kept close to the body.                                   B. It fully uses muscle power.
C. It makes users feel relaxed.                           D. It’s operated with less force.
62. What is Figure 1 used to show?
A. The effective use of the tool.                         B. The way of operating the tool.
C. The proper design of the handle.                    D. The purpose of bending the wrist.
63. In choosing tools for women, _____of the handle is the most important.
A. the size             B. the edge            C. the shape           D. the position