下列不属于正常胸部MRI表现的是（）  A.中年人胸腺T1WI、T2WI呈等信号 B

脱硫、脱磷都需高碱度、大渣量，不同的是脱硫需要高温，低氧化铁，而脱磷则相反。

信息匹配。

     A．City Water Skiing Centre-We are in the heart of the city and give you an easy chance

to enjoy the fun and excitement of water skiing.We offer half hour lessons every hour between

9 am and 4 pm.A fun way to get a lot of exercise quickly and then stay fit.

     B．Horse Riding School-Our experienced teachers provide oneonone instruction that

makes learning to ride a horse safe and easy.We are located on a large farm where you will

be able to get to enjoy lots of fresh air and the beauty of nature.Open 7 days a week between

8 am and 6 pm.

     C．Ballroom Dancing Society-The dancing society is organizing a special course for

new members.No experience is necessary and if you don't have your own partner we will

arrange one for you.Have fun learning to dance and making new friends in class and at our

many social events.Classes begain every Monday and Thursday from 7 pm to 9 pm.

     D．Hiking Club-The club is looking for new members to join us on our regular hikes.

Each weekend we go to local mountain and forest locations for long walks providing the

chance for plenty of exercise and fresh air.Different members take part each week so you

will have the chance to make new friends.The hikes range in difficulty from easy to very hard

and we expect our members to be fit before they join.

     E．Ron's Boxing Gym-We don't just teach you how to box；we teach you how to keep

fit for the rest of your life.Our training involves many different activities such as running,

skipping and lifting weight,as well as -of course-actual boxing.Once a month we also organize

practice fights for members of the same sex and weight.Open from 2 pm to 10 pm.

     F．Water Polo Club-If you can swim and like ball sports then you'll love water polo.It

is like playing football in the water,a fun and lowimpact way to stay healthy.As a waterbase

 sport it is also the ideal way to recover from injury.Open weekdays from 9 am to 11 am and

4 pm to 8 pm.

请阅读下列个人信息,然后匹配人物与拟选的课程.

     1．Harold-is a busy bank manager working in the city.He has put on a lot of weight in

recent years and wants to take up a sport that will help him get fit.He enjoys thrilling and

exciting sports but as he often has to work late into the evening and on the weekend so he

only has time to go during his workday lunch hour.

     2．Maude-has been retired for 2 years.She is in good health but wants to keep active

and remain in shape.She is interested in a hobby that isn't too difficult to learn and will give

her lots of fresh air and the chance to meet some new friends.She only has free time on the

weekend as most weekdays are spent taking care of her grandchildren.

     3．Sid-is a high school student that recently hurt his knee playing football.The doctor

has told him that for the next 6 months he shouldn't put too much pressure or weight on it

and he needs to do some sport that will help him build up his strengthbut will not cause any

more damage to his knee.Afternoon after school is his preferred time.

     4．Nancy-is a university student who loves excitement and is always willing to try out

something different.She has little patience however and wants a sporting activity that will give

her the chance to do many different things.As she works part time after class and on the

weekend she is only free on weekday afternoon.

     5．Spike-has recently moved to the city and doesn't have many friends.He is not really

a sports fan but wants to do something that is fun and that will give him the chance to meet

new people.He is only free in the evening.

1．________ 2.________ 3.________4．________ 5.________

肝性脑病治疗中可降低血氨的药物是（）

A.乳果糖

B.谷氨酸钠

C.甲硝唑

D.支链氨基酸

E.甘油灌肠剂

机器设备的技术结构，性能没有改变，但由于劳动生产率的提高，使设备的再生产费用下降了，而使原有同种设备发生贬值而形成的耗损称（）。

A、有形磨损

B、无形磨损