不同年龄组人群冠状动脉硬化等级的资料如表所示：[YS91_201_1.gif]年龄与

下列各项都属于我国珍稀植物的是（　　）

A．雪松和金花茶

B．人参和银杉

C．珙桐和梧桐

D．台湾杉和油松

因设计变更造成的延误，经( )确认，工期相应顺延。

A．发包人

B．工程师

C．承包人

D．项目经理

分析下列材料，回答有关问题：

材料一：人类是上帝和神创造的。女娲根据上帝的旨意捏了各种各样的泥人，有男的，也有女的。泥快干的时候，因天要下雨，女娲匆忙收拾，不小心，一部分人断胳膊少腿，就是我们今天的残疾人，后来形成我们今天繁荣的人类社会。

材料二：19世纪著名的进化论的建立者达尔文，在《物种起源》、《性选择和人类的由来》以及《人和动物的表情》等著作中，比较明确地指出人和其他动物一样也是进化来的。并推测人类的祖先与大猩猩和黑猩猩有亲缘关系。

（1）试分析材料一、二关于人类起源的不同观点。                                     ；                                                                        。

（2）你赞同哪种人类起源的学说？            为什么？                                                                                                      。

（3）在现实生活中，我们也常会遇到一些封建迷信思想作怪的现象，我们应该用怎样的态度去面对？                                                                     。

K线图上表现出来的十字线，表示（）。

A．股价上涨幅度大

B．股价下跌幅度大

C．股价震荡，收盘与开盘不等价

D．股价震荡，收盘与开盘等价

With only about 1, 000 pandas left in the world, China is desperately trying to clone(克隆) the animal and save the endangered species. That’s a move similar to what  Texas A & M University researchers have been undertaking for the past five years in a project called “Noah’s Ark”.

Noah’s Ark is aimed at collecting eggs, embryos(胚胎), semen and DNA of endangered animals and storing them in liquid nitrogen(氮). If certain species should become extinct, Dr. Duane Kraemer, a professor in Texas A & M’s College of Veterinary Medicine, says there would be enough of the basic building blocks to reintroduce the species in the future.

It is estimated that as many as 2, 000 species of mammals, birds, reptiles will become extinct in over 100 years. The panda, native only to China, is in danger of becoming extinct in the next 25 years.

This week, Chinese scientists said they grew an embryo by introducing cells from a dead female panda into the egg cells of a Japanese white rabbit. They are now trying to implant the embryo into a host animal.

The entire procedure could take from three to five years to complete.

“The nuclear transfer(核子移植) of one species to another is not easy, and the lack of available(capable of being used) panda eggs could be a major problem,” Kraemer believes. “They will probably have to do several hundred transfers to result in one pregnancy (having a baby). It takes a long time and it’s difficult, but this could be groundbreaking science if it works. They are certainly not putting any live pandas at risk, so it is worth the effort,” adds Kraemer, who is one of the leaders of the Project at Texas A& M, the first-ever attempt at cloning a dog.

“They are trying to do something that’s never been done, and this is very similar to our work in Noah’s Ark. We’re both trying to save animals that face extinction. I certainly appreciate their effort and there’s a lot we can learn from what they are attempting to do. It’s a research that is very much needed.”

60. The aim of “Noah’s Ark” project is to _______.

A. make efforts to clone the endangered pandas 

B. save endangered animals from dying out

C. collect DNA of endangered animals to study

D. transfer the nuclear of one animal to another

61. According to Professor Kraemer, the major problem in cloning pandas would be the lack of _______.

A. available panda eggs                B. host animals

C. qualified researchers                D. enough money

62. The best title for the passage may be _______.

A. China’s Success in Pandas Cloning                       

B. The First Cloned Panda in the World

C. Exploring the Possibility to Clone Pandas  

D. China —the Native Place of Pandas Forever

63. From the passage we know that _______.

A. Kraemer and his team have succeeded in cloning a dog

B. scientists try to implant a panda’s egg into a rabbit

C. Kraemer will work with Chinese scientists in clone researches

D. about two thousand of species will probably die out in a century