题干

影响人们学习、工作和休息的声音叫做噪声.如果一个人突然暴露在极强的噪声下,会损伤耳中的(  ),甚至会因此失去听觉.

A:鼓膜

B:听小骨

C:耳蜗

D:听觉神经

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答案(点此获取答案解析)

A

同类题1

观察下列模型并结合有关信息,判断有关说法不正确的是(   ) 
 
B12结构单元
SF6分子
S8分子
HCN
结构模型示意图




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同类题2

任务型阅读

    Business is the organized approach to providing customers with the goods and services they want. The word business also refers to an organization that provides these goods and services. Most businesses seek to make a profit—that is, they aim to achieve income that is more than the costs of operating the business.____. Commonly called nonprofits,these organizations are primarily nongovernmental service providers. ____

    Business management is a term used to describe the techniques of planning, direction,and control of the operations of a business. ____. One is the establishment of broad basic policies with respect to production; sales; the purchase of equipment, materials and supplies; and accounting. ____. The third relates to the establishment of standards of work in all departments. Direction is concerned primarily with supervision(监管) and guidance by the management in authority.____.

A. Examples of nonprofit businesses include such organizations as social service agencies and many hospitals.

B. Control includes the use of records and reports to compare actual work with the set standards for work.

C. In this connection there is the difference between top management and operative management.

D. However, some businesses only seek to earn enough to cover their operating costs.

E. The second aspect relates to the application of these policies by departments.

F. In the theory of business management, organization has two main aspects.

G. Planning in business management has three main aspects.