月经过少血虚证的发病机制是（） A.精亏血少，冲任血海亏虚 B.脾气虚弱，生化不

Everyone enjoys music. But do you know it can improve the lives of sick kids? __57___ In fact, music has changed the world a lot. In Australia , a scientist, Catherine, has made a music program.  ___58___ “Music can make you happy, music can make you sad, music can make you relaxed and take away any stress (压力) ，”said Catherine.
For thousands of years people has believed that music has a great effect on both the mind and the body, but it was only about 70 years ago that scientists began to study its medical（医学） benefits（益处）. ___59____ Since then, people has began to use music to help patients. People even used it to help kids in schools get better marks.
Now music is being used in a special programme called Music Therapy (疗法). It helps people improve their quality of life in many different ways by using music. Sophia is 11. She got cancer (癌症) five months ago, but playing music, learning new songs and singing have become a part of life. She said, “It takes my mind off feeling sick. While I am listening to music, it tells me not to give up hope. ___60____”
It seems that a few minutes of music a day can help keep the doctor away!

A. They found that playing music in hospitals helped sick soldiers feel better. B. It includes listening to music, playing instruments, singing, song writing and other games. C. It feels like soon my life will turn around and I will be strong again. D. So some people like music that they can sing along.  E. The program has been putting smiles on the faces of kids in hospitals across the country.

在某种产品表面进行腐蚀性刻线实验，得到腐蚀深度y与腐蚀时间x之间相应的一组观察值，如下表：

x/s	5	10	15	20	30	40	50	60	70	90	120
y/μm	6	10	10	13	16	17	19	23	25	29	46

用散点图及相关系数两种方法判断x与y的相关性．