大气湿度是指大气中水蒸气含量的多少，用来表示大气的潮湿程度，它是许多天气现象形成

制约商业银行创造派生存款能力的主要因素包括（ ）。

A．储户提取现金的数量

B．商业银行创造货币的能力

C．企事业单位及公众缴付税款的数量

D．银行间同业拆借的数量

E．商业银行缴存中央银行存款准备金的数量

解方程：

（1）（x+3）²=（1-2x）²

（2）（x+4）²=5（x+4）

坚持唯物史观的学习方法是指( )

A.学习医学伦理学必须做到理论与实践相结合

B.系统地学习医学伦理学的基本理论、范畴、规范和原则

C.把医德观点和医德规范准则放在所处的历史时代去理解

D.把历史上的一切医德理论和规范都继承下来

E.把医学伦理学的一切理论、道德原则和规范都背诵下来

简述法律责任与法律义务的区别。

Comprehensive lifestyle changes including a better diet and more exercise can lead not only to a better physique, but also to swift and dramatic changes at the genetic level, U.S. researchers said on Monday. In a small study, the researchers tracked 30 men with low-risk prostate cancer（前列腺癌）who decided against conventional medical treatment such as surgery and radiation or hormone therapy.  

The men underwent three months of major lifestyle changes, including eating a diet rich in fruits, vegetables, whole grains, legumes and soy products, moderate exercise such as walking for half an hour a day, and an hour of daily stress management methods such as meditation（冥想）. As expected, they lost weight, lowered their blood pressure and saw other health improvements. But the researchers found more profound changes when they compared prostate biopsies taken before and after the lifestyle changes. After the three months, the men had changes in activity in about 500 genes -- including 48 that were turned on and 453 genes that were turned off. The activity of disease-preventing genes increased while a number of disease-promoting genes, including those involved in prostate cancer and breast cancer, shut down, according to the study published in the journal Proceedings of the National Academy of Sciences.

The research was led by Dr. Dean Ornish, head of the Preventive Medicine Research Institute in Sausalito, California, and a well-known author advocating lifestyle changes to improve health. "It's an exciting finding because so often people say, 'Oh, it's all in my genes, what can I do?' Well, it turns out you may be able to do a lot," Ornish, who is also connected with the University of California, San Francisco, said in a telephone interview. "'In just three months, I can change hundreds of my genes simply by changing what I eat and how I live'. That's pretty exciting," Ornish said. "The implications of our study are not limited to men with prostate cancer."  

60. The article basically states that a healthy lifestyle__________.  

A. can even change your genes for the better.  

B. has no effect on your genes.  

C. is good for the environment.  

D. helps men recover from prostate cancer.  

61. Apart from eating healthy food and exercising, the men in the study__________.

A. were put under a lot of stress.  

B. were walking for hours a day..  

C. were taught stress management methods.  

D. were thinking for a whole day.

62. In total, how many disease-preventing genes turned on as a result of the healthy lifestyle?

A.   30           B. 453                   C.500             D. 48

63. Which of the following is NOT mentioned in the article?

A. The men with low-risk prostate in the study lost weight and lowered their blood pressure.

B. A famous author and Dr. Dean Ornish led this research.

C. Dr. Dean Ornish expressed his optimism about this research in a telephone interview.

D. Conventional medical treatment has no effect on the men with prostate cancer.