TIA最需与下列哪种疾病鉴别（） A.脑出血 B.面神经炎 C.局限性癫痫 D.脑血

下列关于观察植物细胞有丝分裂实验的叙述，正确的一组是：

①解离的目的是将组织细胞杀死，以利于固定细胞的形态②漂洗的目的是为了洗去根尖上的酸，避免与碱性染料发生中和③用龙胆紫染色是为了将染色体染成紫色④压片可将根尖细胞压成单层，使之不互相重叠⑤高倍镜下视野明亮，看到的细胞数目少⑥当看到一前期细胞时，要注意观察到它如何进入到中期、后期、末期的过程，以理解从中期到末期发生的变化。 [ ]

A．①②

B．③④⑤

C．②③④

D．②③⑥

唐代有一位诗人，其诗风雄奇飘逸，诗情一泻千里，笔势灵活矫健，充满大胆和奇特的想像，人们称他为“诗仙”。该诗人是

A．李白

B．杜甫

C．白居易

D．苏轼

阅读理解

     Les Paul is one of the most influential people in modern popular music. He was a skillful guitarist who

played an energetic mixture of jazz and country songs. He was also an inventor.

The electric guitar and recording devices he created changed the sound of popular music and greatly

influenced rock and roll.

     Les Paul is best known for creating one of the first solidbody electric guitars and the eighttrack

recording device. He also perfected new recording methods to give special effects to his music.

Les Paul was born Lester William Polfuss (POLLfuss)in 1915 in Waukesha, (WAHkuhshaw)Wisconsin. By the age of nine, he had taught himself to play the harmonica and had built a radio. He also learned to

play the guitar and banjo. He could not read music, but he could play music that he heard. And he had a

good sense of musical structure.

     Les Paul was soon performing in country bands in the Midwest. He left high school to perform full time on radio shows. He performed using the names "The Wizard of Waukesha", "Hot Rod Red" and "Rhubarb Red". He also started playing music influenced by great jazz guitarists including Django Reinhardt.

     By 1937, he had formed the Les Paul trio. He moved to New York City the next year. Les Paul played with many famous performers including the popular singer Bing Crosby.

     Around 1941, Les Paul invented his famous guitar. He wanted to make an instrument that could play a note longer than notes played on a traditional acoustic guitar. He developed a new kind of electric guitar that had a solid body. On an acoustic guitar, the strings vibrate and the hollow part of the instrument, or the

sound box, also vibrates. Les Paul wanted an instrument in which only the strings vibrated.

     In the 1970s, Les Paul made two records with the country guitarist Chet Atkins. One was called "

Chester and Lester". It won a Grammy Award in 1976. Starting in the early 1980s, Paul began playing in

jazz clubs in New York City. He kept on performing weekly until a few months before his death.

1. Which of the following shows the right order of Les Paul's experience?

a. He moved to New York.

b. He had taught himself to play the harmonica.

c. He performed full time on radio shows.

d. He began playing in jazz clubs in New York City.

e. He invented his famous guitar.

A. abcde

B. bcade

C. bcdea

D. bcaed

2. According to the passage, the author develops the passage ________.

A. in order of time

B. in order of importance

C. by giving examples

D. by listing reasons

3. Which of the following best describes Les Paul?

A. He is a creative man.

B. He is a lazy man.

C. He is a naughty man.

D. He is a crazy man.

4. Which of the following is TRUE according to the passage?

A. He influenced Django Reinhardt.

B. He had no good sense of musical structure.

C. He could play and read music when he was a child.

D. He made two records with Chet Atkins in the 1970s.

2011年9月11日，在全国第九届少数民族传统体育运动会上进行的独竹漂60米男子直道竞速决赛中，来自我州麻江就读于凯里学院的苗族选手胡朝贵以21.3秒的成绩为贵州代表队夺得首个一等奖，同时，他也幸运地成为本届运动会首个一等奖获得者，如图所示．独竹漂和划杆是用玻璃钢制作的，独竹漂重30kg，划杆重3.5kg．胡朝贵在决赛中的平均速度为2.82m/s，体重为56.5kg的他拿着划杆（划杆与水未接触）踏着独竹漂漂浮在水面上静止不动时，独竹漂受到的浮力是______N（g取10N/kg），独竹漂浸没在水中的体积为______m³．

根据《政府采购评审专家管理办法》规定，评审专家的抽取时间原则上应当（）。

A、在开标前一天或前两天进行

B、在开标前半天或前两天进行

C、在开标前半天或前一天进行

D、在开标前一小时或前半天进行