45钢按用途分类属于（）钢。

阅读理解。

　　Jack London was a famous American writer. He was born on January 12,

1876, in America.His family was very poor, and Jack had to leave school to

make a living when he was twelve. He worked very hard.

　　Later Jack returned to school. He was strict with himself and worked hard

at every subject, especially (尤其) literature(文学) .

　　In 1897, he went to Alaska to look for gold(黄金). Instead of getting gold,

he found material for his books and stories. He returned home and started to

write. His writings were so successful that he became rich and famous in his

twenties.

　　But Jack London was not a happy man. He took his own life in 1916 when

he was only 40 years old.

1. Jack London was from ________.

A. Alaska

B. London

C. the USA

D. France

2. He was a famous ________.

A. worker

B. story-teller

C. teacher

D. writer

3. In Alaska, he________.

A. found gold

B. found books and stories

C. became rich

D. learned a lot

4. He became famous for________ .

A. his writings

B. his gold

C. rich life

D. both A and B

5. He began to work in________ and died in ________.

A. 1888; 1916

B. 1876; 1916

C. 1900; 1956

D. 1876; 1900

男性，48岁，肝硬化腹水，近3天出现低热伴腹痛，腹水量较前明显增加。腹水常规检查：李凡他实验（+），细胞总数650×10⁶／L，白细胞500×10⁶／L，中性粒细胞90％，最可能的诊断是（）.

A.肝肾综合征

B.自发性腹膜炎

C.门静脉血栓形成

D.结核性腹膜炎

E.原发性肝癌

患者，女，68岁，高血压病史20年，发现尿蛋白3年，尿比重1.010.红细胞0～1/HP，尿蛋白0.45g/d，尿蛋白分析β₂-MG，α₁-MG升高。该患者蛋白尿属于（）。

A.溢出性

B.组织性

C.肾小球性

D.肾小管性

E.功能性

关于酒后及醉酒驾驶、营运机动车的处理规定，下列表述正确的是( )。

A．饮酒后驾驶机动车的，处暂扣6个月机动车驾驶证，并处1000元以上2000元以下罚款

B．醉酒驾驶机动车的，由公安机关交通管理部门约束至酒醒，吊销机动车驾驶证，依法追究刑事责任；5年内不得重新取得机动车驾驶证

C．饮酒后驾驶营运机动车的，处15日拘留，并处5000元罚款，吊销机动车驾驶证，5年内不得重新取得机动车驾驶证

D．饮酒后或者醉酒驾驶机动车发生重大交通事故，依法追究刑事责任，并由公安机关交通管理部门吊销机动车驾驶证，终生不得重新取得机动车驾驶证

汽轮机转速在满速过程中应注意哪些？