* * 、乳晕部分发生大小不等的皲裂称为（）。 A. * * 破碎 B. * * 湿疹 C.乳晕湿疹

场景(三) 甲公司与乙公司同时签订了两个合同，第一个合同是材料采购合同，合同中约定由甲公司先向乙公司提供材料，乙公司接受材料后向甲公司支付材料款。第二个合同是劳务合同，合同中约定由乙公司为甲公司提供劳务，甲公司根据完成的工程量向乙公司支付劳务费。
根据场景(三)回答下列问题：

( )的规定，是运用国家强制力保障合同法效力最有力的手段。

A．合同争议解决

B．违约责任

C．全面履行

D．适当履行

传导速度最快的是：（）

A窦房结

B心房肌

C房室交界

D心室肌

E浦肯野纤维

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.

Notes: intrinsic 固有的。con-substantial 同体的。autonomy 自主性。zealously and without the least suspicion热情地并丝毫也没有想到。for the most part 大部分，主要地。Utopian乌托邦，理想主义。disinterestedly 不偏不倚地。resign oneself to 听任，顺从。

Why is electrical technology mentioned in the third paragraph（）

A. To confirm its importance in the modern world

B. To show the powerful influence of its inventions

C. To verify the usefulness of theoretical knowledge

D. To give an example of success in practical science

关于T-OA高级流程设置，以下说法正确的是（）。

A.在高级流程设置中，回复节点实质上是个条件判断节点

B.有分支节点，一定要有聚合节

C.有分支节点，可以没有聚合节点

D.有并行节点，可以没有合并节点

所谓前面磨损就是形成月牙洼的磨损，一般在切削速度较高，切削厚度较大情况下，加工塑性金属材料时引起的。( )