完全的爪形手见于（） A.单纯正中神经损伤 B.单纯尺神经损伤 C.正中神经与尺神经

阅读理解。

     It took me three long and hard years to get a lovely little dog named Dion.

     My family and I met it at a dog show. We drove for four hours to its owner's house where she showed

us three little dogs, two males and one female. They were so lovely with their little legs, long bodies and heads

that looked too big for their bodies. It took me a long time to decide which one I wanted,but I finally decided

when the female came up to me and licked (舔) my face.

     My mother and I took Dion to a kindergarten (幼稚园) for little dogs. She was very shy and hid from

people. But she was very friendly with the other dogs.

     If you want to get a dog, think about your time and the work you must do. I walk Dion four to six times

a day. I feed her, spend time with her and watch her when she is out of her doghouse. Even if my favorite TV

program is on, or a good part in a movie is coming up, I still have to take care of her. It is a lot of work to

keep her clean. Sometimes when I brush her I end up with hair all over me.

     But I think it is all worth it. Dion also gives her love to me in return. She is always there to lick me and lie

on me. I like playing with her. I think she can tell when I am happy, sad, angry or troubled. Dion is not only

my dog, but she is also my friend.

1. What does Dion look like?

2. The writer finally decided to take Dion because _____.

A. it was very clean

B. it was the youngest one

C. it was very quiet

D. it was friendly to him

3. Paragraph 4 tells us that keeping a dog is a _____ job.

A. hard

B. funny

C. popular

D. dirty

关于机械波，下列说法不正确的是：

A.在传播过程中能传递能量    B.频率由波源决定

B.能产生干涉、衍射现象      D.能在真空中传播

患者，男性，37岁。右上叶肺癌切除术后24小时，肺癌的非转移性全身症状即逐渐消失。此类症状不包括（）

A.骨关节痛

B.重症肌无力

C.男性乳腺增大

D.ushing综合征

E.颈交感综合征

仔猪黄痢下痢便特性（）

A.水样便

B.黄色糊状

C.血便

D.白色黏腻

静止土压力