由两种（类）或者两种（类）以上营养性饲料添加剂为主，与载体或者稀释剂按照一定比例配制

Let’s say you took violin lessons all through elementary school, but you haven’t got the instrument out of its case for years. Were all those lessons a waste of your parents’ money because you didn’t become a violinist?

Even though it has been a long time since you played the violin, a new study shows that as little as one year of music training can have a positive impact (影响) on your brain that will last the rest of your life.

In an experiment, researchers compared children who had taken music lessons to those who hadn’t. Laurel Trainor, who studies music and the mind, discovered that the musically-trained children had better brain responses in certain sound recognition exams. Trainor’s findings show the possibility that musical education can actually improve the brain’s hearing cortex(大脑皮层). “The study’s results show that music training affects attention and memory, and helps children develop learning skills. In this way music training might lead to better learning across a number of fields,” Trainor said in a statement. The effects of music education are even more obvious on children with difficulty in reading and writing and other language-related disabilities.

So, whether you can play a good piece of music or not, it’s likely that your years of music lessons have prepared your brain for all the speeches, emails, and adult conversations that are part of your life today. We should help make sure that children today have the same opportunities for music, and help out by volunteering with or donating instruments to your school’s music education department.

小题1:Compared with children who haven’t taken music lessons, musically-trained children _______.

A．sing better

B．do better in exams

C．recognize sounds better

D．response more quickly小题2:According to the study, we know musical education can _____.

A．change the structure of the brain

B．improve children’s learning skills

C．help children focus their attention

D．provide more memorizing methods小题3:What can we learn from the text?

A．Adults should also take some music lessons.

B．The author has taken violin lessons when he was young.

C．Even a day’s music training can affect the human brain.

D．Music training can also help children with certain disabilities.

汽车变速器常用材料是（）

A．HT20-40

B．HT15-33

C．KT35-10

湖泊是陆地上积水的凹地，按其成因来说，五大连池属于构造湖。

某商场以低价处理积压商品，在商场中明确告示“处理商品一经售出概不退换”，赵某询问商场销售人员，商品是否都是真货，销售人员说：“放心吧，都是正规厂家进的货”，赵某遂购买了40节巨能牌7号电池，赵某先在自己的MP3中使用了一节电池，只用了一个小时，电池就没电了，并且由于电池过热，烧坏了MP3，赵某的女朋友李某因为接触MP3导致手指被烧伤。赵某到有关机构检验后，得知这些电池都是假冒产品，赵某要求商场双倍退还货款，并赔偿MP3的损失。商场通过调查，发现该批货是本商场的采购人员周某采购的假货，商场答复赵某说自己也是受害者，况且商场已经明示概不退换，所以不能给赵某退货，也不赔偿MP3的损失。赵某声称如果不赔偿自己的损失，就要找媒体曝光，商场工作人员说：“你如果缺钱花，我们可以赞助你，何必用这种下九流的方法这种方法又不能致富!”商场当天遂令自己的通讯员以“消费者的权利可以滥用吗——假王海们可以休矣”为题在当地晚报上发文，文中明确指出了赵某的姓氏、性别、年龄和工作单位，并且认定赵某买电池就，是为了获得双倍赔偿，并对赵某进行了讽刺挖苦。晚报在该市的发行量很大，赵某单位的同事及赵某的邻居很多人看报后都知道该文指的是赵某，一些人开始对赵某指指点点，给赵某造成很大的精神压力。赵某遂到法院起诉。赵某请求法院判令商场双倍退还价款，以下是法院合议庭成员的意见，正确的是 ()

A．商场已经在店堂告示中明示“处理商品一经售出概不退换”，赵某也知悉或者应当知悉该告示内容，这就表示消费者和经营者有约定，当事人双方约定的效力应高于法律规定，所以赵某无权要求商场退货，更不能要求商场双倍退还价款

B．经营者不能以店堂告示等方式作出对消费者不公平、不合理的规定，所以商场“处理商品一经售出概不退换”的声明无效，商场不能免责

C．经营者双倍退还价款的主要条件是经营者构成欺诈，商场销售假货也是由于自己的采购人员行为所致，商场可能在内部管理上存在过错，但是对消费者不构成欺诈，所有赵某无权要求商场双倍退还价款

D．商场应当对自己的工作人员的行为负责，所以商场只要售卖假货就构成欺诈，应当双倍退还价款

1型糖尿病患者易发生的急性病症（）

A.酮症酸中毒

B.非酮症高渗性昏迷

C.糖尿病伴发肾病

D.糖尿病伴发心血管病

E.糖尿病伴发神经病变