题目内容
绿光在绿色植物的光合作用中很少被吸收利用，绿光也称为______。
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当一个生态系统发展到成熟、稳定的阶段时，这个生态系统的生物种类组成及数量比例就没有明显变动了。( )
Section A There is one passage in this section followed by five questions. For each question, there are four choices marked A, B, C and D. You should decide on the best choice, then mark the corresponding letter on the answer sheet with a single line through the centre. If art seeks to divorce itself from meaningful and associative images, if it holds material alone as its objective, then I think that the material itself ought to have the greatest possible plasticity, the greatest potentialities for the development of shapes and the creating of relationships. For that reason I think that the sculpture which has been created with a view to being form alone has been a great deal more successful and interesting than has been the painting in that vein. The sculptor sets out with two pre-existing advantages: one, that he must have craftsmanship, and the other, that he works in the round. He does not have to stimulate depth nor create illusions of depth because he works in volume—in three-dimensional form. Thus Noguchi, working in marble, is able to develop relationships in three-dimensions rather than two and yet retain both simplicity and unity. He has at his disposal the advantages of light and space, and the natural translucence and glow of marble, all of which he exploits and reveals with great elegance. Henry Moore is one of the great contemporary imaginers who has brought new materials and new concepts into sculptural form. He discovers the naturally heroic character of bronze and exploits feelingly the graining and fine surfaces of wood. Undoubtedly his most remarkable feat has been the surrounding of open space and his use of such space as a sculptural material. But beauty and craft and idea are still paramount with Moore and he never obliterates these qualities in the shock of the new. Questions: In the author’s opinion, Henry Moore’s greatest sculpturing feat has been ______ .
热轧钢筋的力学性能检验应从每批中任选两根钢筋分别做拉力试验和冷弯试验。( )
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