在一般情况下，团体结构形成于（）。 A.规范期 B.冲突期 C.形成期 D.结束期

“至虚有盛候”的病机是（）

A.实中夹虚

B.虚中夹实

C.虚实夹杂

D.真实假虚

E.真虚假实

肝硬化门静脉高压症食管曲张静脉发生破裂大出血时()

A．应当先行积极的非手术治疗

B．应立即急诊行门奇静脉断流手术

C．应立即行TIPS术

D．应立即急诊行脾切除术

E．应立即急诊行门腔静脉分流术

变频调速技术是利用电机的（）和（）是线性关系这一原理实现的。

具有脉短如豆，滑数有力特征的脉象是（）

A.滑脉

B.数脉

C.动脉

D.疾脉

E.促脉

For me, scientific knowledge is divided into mathematical sciences, natural sciences or sciences dealing with the natural world (physical and biological sciences), and sciences dealing with mankind (psychology, sociology, all the sciences of cultural achievements. every kind of historical knowledge).

Apart from these sciences is philosophy, about which we will talk later. In the first place, all this is pure or theoretical knowledge, sought only for the purpose of understanding, in order to fulfill the need to understand that is intrinsic and con-substantial to man. What distinguishes man from animals is that he knows and needs to know. If man did not know that the world existed, and that the world was of a certain kind, that he was in the world and that he himself was of a certain kind, he wouldn’t be man. The technical aspects or applications of knowledge are equally necessary for man and are of the greatest importance, because they also contribute to defining him as man and permit him to pursue a life increasingly more truly human.

But even while enjoying the results of technical progress, man must defend the primacy and autonomy of pure knowledge. Knowledge sought directly for its practical applications will have immediate and foreseeable success, but not the kind of important result whose revolutionary scope is for the most part unforeseen, except by the imagination of the Utopians. Let me recall a well-known example. If the Greek mathematicians had not applied themselves to the investigation of conic section zealously and without the least suspicion that it might someday be useful, it would not have been possible centuries later to navigate far from shore. The first men to study the nature of electricity could not imagine that their experiments, carried on because of mere intellectual curiosity, would eventually lead to modern electrical technology, without which we can scarcely conceive of contemporary life.

Pure knowledge is valuable for its own sake, because the human spirit cannot resign itself to ignorance. Butt in addition, it is the foundation for practical results that would not have been reached if this knowledge had not been sought disinterestedly.

The author does not include among the sciences the study of（）

A. literature

B.chemistry

C.astronomy

D. anthropology