下列关于声级计中计权网络的叙述中,正确的是()。A.网络A对中、低频噪声有较大衰减作

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问题:

下列关于声级计中计权网络的叙述中,正确的是()。

A.网络A对中、低频噪声有较大衰减作用 

B.网络B较A对低频噪声有更大衰减作用 

C.网络D对中频噪声也有衰减作用 

D.网络ABC对高频噪声无衰减作用

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某同学用托盘天平称量5.8g(0g以下用游码)药品,称量后发现误将砝码和药品在托盘上的位置颠倒了.请分析该同学称得药品的质量是(  )

A.5.6g

B.4.7g

C.5g

D.5.3g

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我国慢性肾衰竭的最常见病因是()。

A.糖尿病肾病

B.尿酸肾病

C.慢性肾小球肾炎

D.反流性肾病

E.慢性肾盂肾炎

题型:多项选择题

《哭小弟》作者是()

A.冰心

B.巴金

C.宗璞

D.罗家伦

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在卡内购买凭证式国债,视为续存业务,对于人民币单笔()现金购买国债业务,应比照活期存款业务相关规定审核客户的有效身份证件。

A.1000以上(不含)

B.5万元以上(不含)

C.5万元以上(含)

D.10万元以上

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This book is written expressly for students in an attempt to present the material that is most useful and interesting to them. Previous courses in chemistry are not necessary for the understanding of the material, although those students who have had high school chemistry will find that a review of the inorganic section will better enable them to master the organic and biochemistry sections that follow.

The author has felt that in the past there was an improper selection of material from inorganic, organic, and biochemistry in the majority of the textbooks of chemistry for nurse. The tendency has been to develop the inorganic chemistry to such an extent that organic and biochemistry is covered too briefly. The recent advances in biochemistry and their widespread application to the practice of medicine and nursing have considerably altered the situation. Not only is biochemistry more closely allied to the practical chemistry of medicine and nursing but also it is of more interest to the student. In the author’s experience the response to biochemistry has always been more favorable than to the other sections. Within the brief period allotted to chemistry, therefore, the sections on inorganic, organic, and biochemistry should be so arranged that a good share of the time is spent in the study of biochemistry. This book presents mainly those fundamentals of inorganic and organic chemistry that are necessary for the understanding of the section on biochemistry.

The fundamental points suggested in the Curriculum Guide are included in the book, with some additions in the biochemistry section. The author feels that a study of urine, vitamins, nutrition, and hormones is so obviously a part of biochemistry that at least the fundamentals should be included in this course.

The book has been planned in such a way that it may be adapted to various courses in chemistry. The material suggested by the Curriculum Guide is covered in the first nineteen chapters and may be used in accelerated courses or where minimum time is allotted to chemistry. When the time allotted to the course is sixty to ninety hours, the entire contents of the book may be used to advantage. While the book has been written especially to fit the needs of Schools of Nursing, it could readily be applied in instances where students are required to take but one course in chemistry.

The apathetic attitude of nonprofessional students toward a course in inorganic chemistry may well be overcome by the proper presentation of material selected from inorganic, organic, and biochemistry.

Para. 4 suggests that one characteristic of this book is its()

A. vividness of the language

B. simplicity in presentation

C. adaptability to various needs

D. complexity of the plot

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