在无形资产评估过程中，可以用来证明无形资产权利存在的具体法律文书包括（）。A．专利证

在算法正确的前提下，评价一个算法的两个标准是 【1】 。

几何平均收益率更多地被用来对将来收益率的估值。( )

高血压患者，突然胸闷，气短，咳嗽，不能平卧，血压26.6/14.6kPa(200/110mmHg)， HRl20/min，心尖区舒张期奔马律，两肺底中量湿啰音，下列各组治疗最适宜的是

A．地高辛，氢氧噻嗪，普萘洛尔

B．利血平，氢氧噻嗪，地西泮(安定)

C．毛花苷C，呋塞米，硝普钠

D．甘露醇，利血平，地西泮

E．酚妥拉明，氨茶碱，普萘洛尔

The topic of cloning has been a politically and ethically controversial one since its very beginning. While the moral and philosophical aspects of the issues are entirely up to the interpretation of the individual, the application of cloning technology can be studied objectively. Many in the scientific community advocate the use of cloning for the preservation and support of endangered species of animals, which aside from cloning, have no other practical hope for avoiding extinction.

The goal of the use of cloning to avoid extinction is the reintroduction of new genes into the gene pool of species with few survivors, ensuring the maintenance and expansion of genetic diversity. Likely candidates for this technique are species known to have very few surviving members, such as the African Bongo Antelope, the Sumatran Tiger, and the Chinese Giant Panda. In the case of Giant Panda, some artificial techniques for creating offspring have already been performed, perhaps paving the way for cloning as the next step in the process.

With the estimated population of only about 1000 Giant Pandas left in the world, the urgency of the situation has led to desperate measures. One panda was born through the technique of artificial insemination in the San Diego Zoo in the United States. "Hua Mei" was born in 1999 after her parents, Hsing-Hsing and Ling-Ling, had trouble conceiving naturally.

The plan to increase the Giant Panda population through the use of cloning involves the use of a species related to the Giant Panda, the American Black Bear. Egg cells will be removed from female black bears and then fertilized with Panda cells such as those from Ling-Ling or Hsing-Hsing. The fertilized embryo will then re-implanted into the black bear, where it will grow and mature, until a new panda is delivered from the black bear host.

Critics of cloning technology argue that the emphasis on cloning as a method by which to preserve species will draw funding away from other methods, such as habitat preservation and conservation. Proponents of cloning counter that many countries in which many endangered species exist are too poor to protect and maintain the species’ habitats anyway, making cloning technology the only practical way to ensure that those species survive to future generations. The issue is still hotly debated, as both sides weigh the benefits that could be achieved against the risks and ethical concerns that constantly accompany any argument on the issue. (402 words)

Notes: ethically 道德上。gene pool 基因库。insemination n.受精。fertilize 使受精。embryo 胚胎。proponent支持者，拥护者。weigh A against B权衡A和B的利弊。

It can be inferred from the information given in the text that the best candidate for cloning would be（）

A.Giant Pandas

B. an endangered species with many living related species

C.the species in which previous techniques of artificial reproduction have been successfully applied

D.those for which cloning is the only feasible method by which to reproduce the species

多能工培训的最低目标是什么？