牙萌出异常的常见原因有（） A.乳牙根尖周感染 B.乳磨牙早失 C.多生牙使恒牙萌出

矿石类药物都应先煎，以利于有效成分的煎出。

阅读理解。

     Grandma Moses is among the most famous twentieth-century painters of the United States, yet she did

not start painting until she was in her late seventies. As she once said of herself:"I would never sit back in

a rocking chair, waiting for someone to help me." No one could have had a more productive old age.

     She was born Anna Mary Robertson on a farm in New York State, one of five boys and five girls. At

twelve she left home and was in domestic (家庭的) service until, at twenty-seven, she married Thomas

Moses, the hired hand of one of her employers. They farmed most of their lives, first in Virginia and then in

New York State, at Eagle Bridge. She had ten children, of whom five survived; her husband died in 1927.

     Grandma Moses painted a little as a child and made embroidery (刺绣) pictures as a hobby, but only

changed to oils in old age because her hands had become too stiff (硬的) to sew and she wanted to keep

busy and pass the time. Her pictures were first sold at a local market and were soon noticed by a businessman

who bought everything she painted. Three of the pictures exhibited in the Museum of Modern Art, and in

1940 she had her first exhibition in New York. Between the 1930s and her death she produced some 2,000

pictures: detailed and lively portrayals (描绘) of the country life she had known for so long, with a wonderful

sense of colour and form. "I think really hard till I think of something really pretty, and then I paint it." she

said.

1. According to the passage, Grandma Moses began to paint because she wanted to _____. [ ]

A. make herself beautiful

B. keep active

C. earn more money

D. become famous

2. The underlined word "survived" means _____. [ ]

A. graduated from college

B. examined the condition of the house

C. lived longer than the other children

D. gave up themselves to the police

3. From Grandma Moses' description of herself in the first paragraph, it can be inferred that she was _____. [ ]

A. independent

B. pretty

C. rich

D. nervous

4. Which of the following would be the best title for the passage? [ ]

A. Grandma Moses: Her Life and Pictures.

B. The Children of Grandma Moses.

C. Grandma Moses: Her Best Exhibition.

D. Grandma Moses and Other Older Artists.

阳光单位人民币卡帐户资金转入途径及用途不正确的有（）。

A.一般帐户转入

B.存取现金

C.将销货收入存入单位卡帐户

D.基本存款户转帐存入

“十一五”规划纲要提出的增强可持续发展能力的目标之一是( )。

A．全国总人口控制在135000万人

B．耕地保有量保持1.2亿公顷，淡水、能源和重要矿产资源保障水平提高

C．生态环境恶化趋势基本遏制，主要污染物排放总量减少20%，森林覆盖达到20%

D．新型农村合作医疗覆盖率提高到75%以上

引起人类移植排斥反应的HLA分子是

A．同种异型抗原

B．异嗜性抗原

C．异种抗原

D．同种抗原

E．改变的自身抗原