男，过敏性休克，使用肾上腺素，心血管系统可出现的反应是（）。 A.减慢心率 B.降低

I began to play the piano four years ago,I always remember my first piano performance.I remember that year,I was only nine years old,and but just     to lean to play the piano a few months before.

One day,my teacher told me there was ging to be a piano performance     three weeks.When I heard the news,I felt very   .But the teacher said,“You can make it.You have     this piece of music many times,so you’ll play it well.And when the performance comes,I’am sure you’ll   .”After hearing the teacher’s words,I felt confident about myself.

After three weeks of hard practicing,the piece for the performance was fianlly   .The night before the performance,I was so excited that I couldn’t stand still or sit down.When it was my    to perform,I held my head high,went onto the stage,sat on the chair,quickly    the song in my head,and lifted up my hands to play.In one breath,I played the piece from beginning to end and played it very pleasantly.Soon,a thunter of applause(雷鸣般的掌声)      out in the concert hall.I felt very happy,and proud of    ,yoo.

That was my first piano performance and I will never forget it.

小题1:

A．finished

B．considered

C．stopped

D．started小题2:

A．in

B．for

C．on

D．until小题3:

A．sleepy

B．exhausted

C．nervous

D．energetic小题4:

A．pronounced

B．provided

C．produced

D．practiced小题5:

A．suit

B．succeed

C．incersse

D．interset小题6:

A．successful

B．ready

C．empty

D．careful小题7:

A．ending

B．turn

C．entertainment

D．challenge小题8:

A．went through

B．made up

C．came up with

D．went off小题9:

A．looked

B．took

C．broke

D．filled小题10:

A．me

B．my

C．myself

D．mine

读图和材料，回答以下问题。

图1是全球风电装机容量和发电成本变化图，图2是某区域风能资源分布图。

（1）进入21世纪，世界各国更重视新能源的开发和利用。结合图1说明全球风电装机容量的变化特点。并从矿物能源供需状况、技术和环境因素分析其主要原因。

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（2）从自然和市场条件分析甲地建设风力发电基地的不利因素。

___________________________________________________________________________________________（3）分析乙地风能资源贫乏的原因。该地正在开发的可再生常规能源是什么？

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抽样调查虽然是非全面调查，但它的目的却在于取得反映总体情况的信息资料，可起到全面调查的作用。

每吨干煤炼焦大约可产生（）煤气。

A．30立方米

B．300立方米

C．3000立方米

D．30000立方米

结构化程序设计的3种基本结构分别是顺序、选择和______。