如果想对磁盘进行整理，应该执行附件中的（）。

阅读理解

     Everyone has his own birthday. People in different countries celebrate(庆祝) their birthdays  in 

different ways. Here are four people from different countries. They will tell us how they celebrate their

birthdays in their countries.

     Sandy Morrison comes from Madrid(马德里). He says happily, " My twenty-first birthday is on a

Saturday, and I'm going to go out with some friends. To wish me a happy birthday, they are going to

pull(拉, 扯) on my ear twenty-one times, once for each year. It is an old custom(风俗). Some people

pull on the ear just once, but my friends are very traditional."

     Mr. and Mrs. Sato are from Tokyo. Mr. Sato is going to be sixty tomorrow. In Japan, the sixtieth

birthday is called Kanreki-it's the beginning of a new life. The colour red is for a new life, so they

always, give something red for a sixtieth birthday. Mrs. Sato says, " What am I going to give my

husband. I can't say. It's a surprise(惊喜). "

     Li Xiaomei from Beijing feels very excited and tells us, " Tomorrow is my sixteenth  birthday. It's a

special birthday. So we're going to have a family party. I'm probably going to get some money in lucky

envelopes(信封) from my relatives. My mother is going to cook noodles noodles are for a long life."

     Phillip  Evans, from Paris, smiles to us, " I'm going to be thirty next week, so I'm going to invite three

very good friends out to dinner. In France, when you have birthday, you often invite people out. In some

countries, I know it's the opposite-people take you out."

1. Do people in different countries celebrate their birthdays in the same way?

2. Is Mr. Sato going to receive something red on his birthday?

3. What is Li Xiaomei going to do on her birthday?

4. How old is Phillip Evans going to be?

5. Who is going to take his friends out to dinner on his birthday?

患者，男，58岁。进行性吞咽困难2月余，上消化道X线钡餐造影见食管下部分管壁僵硬。为明确，首选的检查是（）。

A.食管拉网

B.胸部增强CT

C.食管超声

D.PET-CT

E.食管镜

如图为细胞结构示意图，请据图回答：

（1）制作人口腔上皮细胞临时装片时，染色所用的液体是______．

（2）在显微镜下观察到的人口腔上皮细胞应该是上图中的______（填A或B）．

（3）细胞结构中，控制物质进出的结构的是______．

（4）通过对植物细胞与动物细胞的比较观察，可以发现植物细胞所特有的结构有______、______、______．

普查妇女乳腺癌时测量疾病的频率指标应选用（）。

A.期间患病率

B.时点患病率

C.罹患率

D.发病专率

E.发病率

颐和园中苏州街用（）做驳岸。

A、条石

B、碎石

C、锯齿石

D、圆石