当进度偏差＜0时，表示( )。A．项目运行超出预算费用 B．进度提前，实际进度比计

分度值为0.02mm的游标卡尺，其刻线宽度及宽度差是（）。

A.（0.10-0.20）mm和0.05mm

B.（0.08-0.12）mm和0.02mm

C.（0.08-0.15）mm和0.03mm

无线电波中频率最大的部分是（）

A.紫外线

B.红外线

C.高频电磁场

D.无线电波

E.微波

阅读理解

     "Mark Twain" was the name used by Samuel Langhorne Clemens (1835-1910) when he wrote

books. His father was a lawyer, but a poor one, who lived at Florida, Missouri. The family was so

poor that Samuel did not receive much teaching. He had to learn all that he could from the people

whom he met. His father died when he was very young, and then there was even less money than

before.

     Many of the men in this part of America worked in the ships on the great River Mississippi, and

he did this himself at one time (1857).

     Where did he find the name "Mark Twain"? It came from the great river itself. It was part of one

of the cries used by men who worked in the ships. When a man called "By the mark twain!" he meant

that the river was "two marks deep" there, that is to say, six feet deep ( "Twain" is an old form of the

work "Two".) Samuel Clemens often heard these words when he was young, and he used them as a

penname all his life.

     During his work on the Mississippi he met travelers of all kinds, and this helped him a great deal

when he started to write. But the number of travelers became smaller when war started in America in

1861. Many of the great ships on the river stopped work. Samuel left then and went to Nevada with

his brother, who was at that time Governor of Nevada. There, near the town of Carson, Samuel

became a gold miner, but he never made much money at the time. He soon saw that life in the gold

mines was not for him. He also tried writing for the newspapers in Nevada, and this seemed more

hopeful. He found that he could write.

     He went to Europe in 1867 and visited France and Italy. In 1870 he married Olivia Langdon,

and two years later he was spending nearly all his time writing. Among his books is his own story

(1908).

     He is now always known as Mark Twain, and many people do not even know that his family

name was Clemens. He traveled in America and in England, and went to Oxford in 1907. He was

one of the great American writers of the time, and could make his readers laugh - a thing which few

writers can do. He died in 1910.

1. "Mark Twain" was _________.

A. a famous American writer    

B. name of a book      

C. a great river in America      

D. a large ship

2. As a child, Samuel did not get much education because _________.

A. his father died too early          

B. the family was very poor  

C. he disliked school very much

D. he could learn what he liked from the people he met

3. What gave him a great deal when he started writing? _______

A. His poor childhood              

B. The Mississippi river    

C. All kinds of travelers he met        

D. His brother

4. We can infer from the passage that ________.

A. Samuel loved writing from his early age  

B. Samuel did not love writing at the beginning

C. his writings to the newspaper were successful            

D. his brother encouraged him to write more

5. According to the writer of the passage, a good writer could _________.

A.write a lot for his readers            

B. make a lot of money for his family

C. cause his readers to laugh          

D. travel everywhere he wanted

维持型人际关系的特点是什么？

患者20岁，高热二周伴右大腿疼痛。内科用抗菌素治疗效果不佳。Hb90g／L，WBC10×10⁹／L，胸片示左肺门处有一模糊阴影。入院查右大腿中段略肿，局部皮温增高，皮下静脉明显可见。X线：右股骨中段骨质有斑点状骨密度变化，皮质处有几层骨膜反应，为明确诊断，最先考虑的检查是（）

A.局部穿刺并行组织学检查

B.左肺及右大腿CT检查

C.全身γ-骨扫描

D.血象及血沉检查

E.查痰标本结核菌及瘤细胞