黄河自然断流始于1972年，自1972年至1998年的28年中，黄河下游共发生22年

下列疾病的主要治疗中哪项是错误的

A．重症肌无力—新斯的明

B．三叉神经痛—无环鸟苷

C．特发性面神经麻痹—泼尼松

D．急性炎症性脱髓鞘性多发性神经病—血浆置换

E．震颤麻痹—美多巴

As a young girl growing up in the 1930s, I always wanted to fly a plane, but back then it was almost unheard of for a woman to do that. I got a taste of that dream in 2001, when my husband arranged for me to ride in a hot air balloon for my birthday. But the experience turned out to be very dull. Around that time, I told my husband that I wanted to skydive. So when our retirement community announced that they were having an essay competition and the topic was an experience of a lifetime that you wanted to have, I decided to write about my dream.

In the essay, I wrote about my desire to skydive, stating George Brush Sr. did it at age 80. Why not me? I was just 84 and in pretty good health. A year went by and I heard nothing. But then at a community party in late April 2009, they announced that I was one of the winners. I just couldn’t believe it. Inspired by this, I decided to realize my dream, even though some of my family members and my doctor were against it.

On June 11, 2009, nearly 40 of my family and friends gathered in the area close to where I would land while I headed up in the airplane. My instructor, Jay, guided me through the experience. The plane was the noisiest one I had ever been in, but I wasn’t frightened—I was really just looking forward to the experience. When we reached 13,000 feet, Jay instructed me to throw myself out of the plane. When we first hit the air, the wind was so strong that I could hardly breathe. For a second I thought, “What have I gotten myself into?” But then everything got calmer. We were in a free fall for about a minute before Jay opened the parachute（降落伞）, then we just floated downward for about five minutes. Being up in the clouds and looking at the view below was unlike anything I have ever felt—much better than the hot air balloon. I was just enjoying it.

Skydiving was really one of the greatest experiences of my life. I hope other people will look at me and realize that you don’t stop living just because you are 84 years old. If there’s something you want to experience, look into it. If it’s something that is possible, make it happen.

小题1:What happened to the author in 2001?

A. She flew an airplane.

B. She entered a competition.

C. She went on a hot air balloon ride.

小题2:The author mentioned George Bush Sr. in her essay to       .

A．make her argument persuasive

B．show her admiration for him

C．compare their health condition

D．build up her own reputation小题3: How did the author feel immediately after she jumped out of the plane?

A．Excited.

B．Regretful.

C．Nervous.

D．Scared.小题4:What did the author enjoy most when she was skydiving?

A．The beautiful clouds.

B．The wonderful view.

C．The company of Jay.

D．The one-minute free fall.小题5:What is the best title of the passage?

A．Impossible is nothing.

B．A dream made come true.

C．An unforgettable skydiving.

D．I Went Skydiving at 84!

Swing的事件处理机制包括 【13】 、事件和事件监听者。

对地方环境质量标准的表述，下列哪几项是正确的？（）

A、省、自治区、直辖市人民政府对国家环境质量标准中未作规定的项目，可以制定地方环境质量标准

B、对国家环境质量标准中已作规定的项目，可以制定严于国家环境质量标准的地方环境质量标准

C、地方环境质量标准应当报国务院环境保护主管部门备案

D、地方环境质量标准可以不报国务院环境保护主管部门备案

按单向阀密封副形式的不同，液控单向阔有（）等密封类型。

A、平面密鲥式

B、锥面密封式

C、球面密封式

D、圆柱面密封式

E、曲面密封式