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有关对焊接材料的机械性能和化学成分的叙述中，说法不正确的是( )。
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按照法律规定，只能由第三人出面担保的方式是保证。 ( )
某患儿，一侧腮部肿痛拒按，咀嚼困难，伴见高热，烦躁，口渴喜饮，大便秘结，小便短赤，舌红，苔黄，脉弦滑，治疗的首选方剂是
The Quechua world is submerged, so to speak, in a cosmic magma that weighs heavily upon it. It possesses the rare quality of being as it were interjected into the midst of antagonistic forces, which in turn implies a whole body of social and aesthetic structures whose innermost meaning must be the administration of energy. This gives rise to the social organism known as the ayllu, the agrarian community that regulates the procurement of food. The ayllu formed the basic structure of the whole Inca empire. The central idea of this organization was a kind of closed economy, just the opposite of our economic practices, which can be described as open. The closed economy rested on the fact that the Inca controlled both the production and consumption of food. When one adds to this fact the religious ideas noted in the Quechua texts cited by the chronicler Santa Cruz Pachacuti, one comes to the conclusion that in the Andean zone the margin of life was minimal and was made possible only by the system of magic the Quechua constructed through his religion. Adversities, moreover, were numerous, for the harvest might fail at any time and bring starvation to millions. Hence the whole purpose of the Quechua administrative and ideological system was to carry on the arduous task of achieving abundance and staving off shortages. This kind of a structure presupposes a state of unremitting anxiety, which could not be resolved by action. The Quechua could not do so because his primordial response to problems was the use of magic, that is, recourse to the unconscious for the solution of external problems. Thus the struggle against the world was a struggle against the dark depths of the Quechua’s own psyche, where the solution was found. By overcoming the unconscious, the outer world was also vanquished. These considerations permit us to classify Quechua culture as absolutely static or, more accurately, as the expression of a mere state of being. Only in this way can we understand the refuge it took in the germinative center of the cosmic mandala as revealed by Quechua art. The Quechua empire was nothing more than a mandala, for it was divided into four zones, with Cuzco in the center. Here the Quechua ensconced himself to contemplate the decline of the world as though it were caused by an alien and autonomous force. We may conclude that the Quechua world was ______.
While the polltakers are most widely known for their political surveys, the greatest part of their work is on behalf of American business. There are three kinds of commercial surveys. One is a public relations research, such as that done for banks, which finds out how the public feels about a company. Another is employee-attitude research, which learns from rank-and-file workers how they really feel about their jobs and their bosses, and which can avert strikes by getting to the bottom of grievances quickly. The third, and probably most spectacular, is marketing research, testing public receptivity to products and designs. The investment a company must make for a new product is enormous--$ 5,000,000 to $ 10,000,000, for instance, for just one new product. Through the surveys a company can discover in advance what objections the public has to competing products, and whether it really wants a new one. These surveys are actually a new set of signals permitting better communication between business and the general public--letting them talk to each other. Such communication is vital in a complex society like our own. Without it, we would have not only tremendous waste but the industrial anarchy of countless new unwanted products appearing and disappearing. This paragraph is developed by means of ______.
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