外国人、无国籍人和在华外国企业也可以成为我国行政法律关系的主体。 ( )

（）是亚行贷款项目特有的一种招标程序。

A．一阶段单信封招标程序

B．一阶段双信封招标程序

C．两阶段双信封招标程序

D．两阶段招标程序

大气污染物目前已知的约有100多种。有自然因素（如森林火灾、火山爆发等）和人为因素（如工业废气、生活燃煤、汽车尾气等）两种，并且以后者为主要因素。人类的以下做法有利于减少大气污染保护地球

①尽量以步行和自行车出行         ②减少露天焚烧

③节约用纸保护森林               ④爱护花花草草

A．①②③④

B．①③④

C．①②④

D．①②③

The olinguito（小尖吻浣熊）is new to science. Although lt has been living in the cloud forests of South Amcrica for some time.

Scientists say the olinguito is the first new carnivore（食肉动物）discovered In the Americas in more than 30 years. It is a hairy orange-brown creature with a sweet face and big eyes The animal has small. rounded ears and lives in the trees An adult weighs one kilogram and measures about 75 centimeters. with half of those centimeters taken up by its ringed tail Most of the time. it likes to eat fruit, although it also eats meat. Active at night, the animal has lived in Colombia and Ecuador for a long time. But the olinguito did not exist in science books before now.

Kristofer Helgen, director at the National Museum in Washington, led the research team that confirmed the existence of the olinguito. It had been mistaken more than a century ago for a look-alike animal -- a similar but larger olingo(尖吻浣熊). Mr. Helgen had been studying olingos in a museum for ten years. At that time. he observed a difference in the size and shape of the heads and teeth. That led him on an effort to prove he was looking at an animal never before described by science. He got lucky when he communicated with a zoologist in Ecuador. The animal expert there made a short video that shows an olinguito in the trees. The video confirms that the oiinguito is different from the olingo     Mr. Helgen says tens of thousands of olinguitos live in the wild and are not in danger of disappearing forever. Human beings, however, are moving closer to the olinguito habitat in the Andean cloud forests. The research team estimates that 42 percent of historic olinguiio habitat has been removed

小题1:Comparcd with most carnivores. the olinguito may seem more _____.

A．terrble

B．fierce

C．clever

D．lovely小题2:The onlinguito was unknown to people in the past because ____

A．it was mistaken for another species

B．it was active in the eveing

C．it was too small to be seen clearly

D．it covered itself by its long tail小题3:What does the underlined word "That" in Paragraph 3 refer to?

A．Having been studying olingos for ten years.

B．The short video the animal expert made.

C．His communication with an expert in Ecuador.

D．Differences between olingos and olinguitos.小题4:We can infer from the text that ______.

A．the olinguito could be made full use of

B．the number of olinguitos is in the conutrol

C．the clinguito is a completely new species up to now

D．people know more and more about animals

Rh阳性()
Rh阴性()

A．有

B．无D抗原

C．有抗原

D．无抗原

E．有E抗原

[A] The Need for Science

[B] The Methods of Science

[C] The Challenge of Unsolved Problems

[D] The Specific Features of the Laws of Science

[E] The Steps in Establishing a Scientific Theory

[F] The Rapid Increase of Scientific Knowledge

It is the business of the scientist to accumulate knowledge about the universe and all that is in it. and to find. if he is able. common factors which underlie and account for the facts that he knows. He chooses, when he can, the method of the "controlled experiment".

41. ______.

In the course of his inquiries the scientist may find what he thinks is one common explanation for an increasing number of facts. The explanation, if it seems consistently to fit the various facts, is called a hypothesis. If a hypothesis continues to stand the test of numerous experiments and remains unshaken, it becomes a law.

42. ______.

The "laws" of science differ from the "laws" of a country in two ways. First, a scientific law is liable at any time to need modifying. This happens when a fact is discovered which seems to contradict what the "law" would lead one to expect. The "law" may, in fact. have to be abandoned altogether. Second. a scientific "law" says, "This is likely to be the explanation", or "This accounts for the facts as far as we know them". But the "law" of the country says, "You must..." or "You must not..." The scientific "law" has no moral force; it is not binding on human behavior nor approved or opposed by human conscience.

43. ______.

The evidence as to the vastness of the universe and the complexity of its arrangements continues to grow at an amazing rate. The gap between what we know and all that can be known seems not to diminish, but rather to increase with every new discovery. Fresh unexplored regions are forever opening out. The rapidity of the growth of scientific knowledge, in the nineteenth and twentieth centuries, is apt to give students and teachers the impression that no sooner is a problem stated than the answer is forthcoming. A more detailed study of the history of science corrects the impression that fundamental discoveries are made with dramatic suddenness. Even in our present age no less than fifty years separate the discovery of radioactivity from the explosion of the first atomic bomb. The teacher, giving his brief accounts of scientific discovery, is apt to forget the long periods of misunderstanding, of false hypotheses and general uncertainty, which almost invariably precede the clear statement of scientific truth.

44. ______.

The vast mass of information which scientists have gained has provided the answer to the fundamental questions which, through the centuries, have puzzled and sometimes tortured the human mind. There are many such questions. The study of parasites has provided evidence that organisms which could be self-supporting have become parasites, but hardly any light has been shed on the problem of why they should have done so. What enables an organism to respond to the poisonous secretions of harmful bacteria and organize its resources to defend its life

45. ______.

To raise the standard of living in any country, two things are required, scientific knowledge, and a population sufficiently educated to understand how to apply it. Without the latter, the expected benefits will not come.

Notes: ado 麻烦，忙乱。be binding on 对......有约束力。parasite 寄生虫。shed light on 使某事物更清楚些。 secretion 分泌物。

42（）