目前在我国，企业所得税实行（） A.定额税率 B.超额累进税率 C.比例税率 D.超

该病的中医治法是：

A．理气行滞

B．泻热通腹

C．温通开秘

D．益气养血润燥

E．以上都不是

数据2，2，1，5，-1，1的众数和中位数之和是（    ）。

     A handsome middleaged man walked quietly into the cafe and sat down. Before he ordered, he

couldn't help but noticed a group of younger men at the table next to him. It was obvious they were

making fun of something about him and it wasn't until he remembered he was wearing a small pink

ribbon (丝带) on the lapel of his suit that he became aware of what the joke was all about.

     The man pretended not to notice it, but the whisper and laughter began to get to him. He looked one

of the rude young men straight into the eye, placed his hand beneath the ribbon and asked, "This?"

     With that the young men all began to laugh out loud.  The man he spoke to said, "Hey, sorry, man,

but we were just commenting on how pretty your little pink ribbon looks against your blue jacket!"

     The middleaged man calmly invited the joker to come over to his table, and politely seated him. As

uncomfortable as he was, the young guy had to, not really sure why. In a soft voice, the middleaged man

said, "I wear this ribbon to bring awareness about breast cancer. I wear it in my mother's honor. "

     "Oh, sorry. She died of breast cancer?"

     "No, she didn't. She's alive and well. But her breasts nourished me as a baby, and were a soft

resting place for my head when I was scared or lonely as a little boy. I'm very grateful for my mother's

breasts, and her health. "

     "Umm, "the young replied, "yeah. "

     "And I wear this ribbon to honor my wife," the man continued.

     "And she's okay, too?" the young guy asked.

     "Oh, yes. She's fine. Her breasts have been a great source of loving pleasure for both of us, and with

them she nurtured and nourished our daughter 23 years ago. I'm grateful for my wife's breasts, and her

health."

     "Uh, huh. And I guess you wear it to honor your daughter, also?"

     "No. It's too late to honor my daughter by wearing it now. . . "

     Shaken and ashamed, the young guy said, "Oh, I'm so sorry, mister."

     "So, in my daughter's memory, too, I proudly wear this little ribbon, which allows me the opportunity

to enlighten others. And here. . . "With this, he reached in his pocket and handed the young man a little

pink ribbon. The young guy looked at it, slowly raised his head and asked, ". . . ?"

1. The young men joked about the middle-aged man's ______.

A. looks  

B. ribbon  

C. attitude  

D. clothes

2. What may have happened to the man's daughter?

A. She died of breast cancer.  

B. She was ill with cancer.

C. She had gone abroad.  

D. She got married.

3. What will the young man probably ask at the end of the story?

A. May I give it to my mother?  

B. Can you help me put it on?

C. Will you please forgive me?  

D. Shall we have some drink together?

4. What is the best title for the passage?

A. An Unusual Meeting  

B. An Impressive Lesson

C. Be Grateful to Your Beloved  

D. A Little Pink Ribbon

硅酸盐、铵盐、PAM配制的无粘土相钻井液适用于（）和岩盐层钻井。

A、易跨塌地层

B、不易跨塌地层

C、高温地层

D、高压地层

某工地，当人工挖孔桩的孔挖完以后，在地面绑扎钢筋笼，清晨上班不久，开始往已挖好的孔中，安放钢筋笼。当第一个6m高钢筋笼被8个民工抬起，搬到孔洞的边上，准备放下去的时候，在南边角上的一个民工脚下踩空失稳，刚往下弯腰，钢筋笼随着向南倾倒，倒在了离孔洞边沿2.5m处的4m高的外电线路上，抬钢筋笼的8个民工中除一人幸免外，7人死亡。请判断事故原因。

用人工抬放6m高的钢筋笼的方案是不安全的。