关闭数据库文件有( )种方法。A．3 B．4 C．5 D．6

Robert was born in a city. His father was a teacher and mother was a doctor. They got a lot of money and liked their son. The boy felt very happy. The boy was clever but was very lazy. He didn't like to use his head and wouldn't do anything. He didn't do well in his lessons and hardly finished middle school, when he was twenty. Then his parents found some work for him. But he refused．He stayed in bed all the time. They were angry with him, but he never listened to them. Seven years later they died in a traffic accident. He had to live on selling their property(财产). Now he has nothing. He's often hungry and sometimes he has to sleep under a chair in the park One night, as soon as he fell to sleep, he saw a beautiful girl came up to him and asked him to marry(娶)her. He was very happy and followed her. They came in a house He found she was very rich and had a lot of nice things. After dinner she asked him to see her garden. There were all kinds of flowers in it. Suddenly she disappeared(消失)in the forest. And he couldn't find her. He began to cry loudly. "What has happened to you, sir?"a policeman woke him up and asked "I've lost my wife.”Answered Robert. "She's very beautiful and rich. And she loves me very much.” "Perhaps she's gone home," said the policeman with a smile "She must wait for you at home?” "But I can’t remember where she lives!”

小题1:The boy had a __________ childhood（童年）.

A. terrible              B. happy            C. common        

小题2:The boy didn't do well in his lessons because__________.

A. he wasn't clever       B. he was very young           C. he wouldn't use his head             

小题3:His parents were angry with him because __________.

A .he was very lazy       B. he was weak in his lessons     C. he refused to go on studying              

小题4:When he was __________, his parents died.

A. twenty               B. twenty-two                 C. twenty-seven   .

小题5:One night he __________ in the park.

A. got a beautiful girl's love        B. got a lot of money     C. had a beautiful dream                 

中年女性。右下肢麻木、无力1年半，由足至膝部，再升至躯干，呈渐进性。现左下肢亦受累。体检发现中、下腹壁反射消失，上腹壁反射存在。

若检查感觉，其平面应位于（）

A.平 * * 水平

B.平胸骨角水平

C.平肋弓水平

D.平脐水平

E.平腹股沟水平

20世纪六七十年代，株洲县、集体安置知识青年，成就了当时全。2010年4月下旬，该县为落实，派出于名干部奔赴全县332个建制村，开推进基层民主建设全国先河。在基层民主中，公民参与政治生活的重要形式是[ ]

A．乡镇人民代表大会  

B．乡镇人民政府  

C．乡镇党委          

D．农村村民自治和城市居民自治

（）不能达到较高强度，但和易性较好，使用操作起来方便，广泛用于工程中。

A、水泥砂浆

B、混合砂浆

C、石灰砂浆

D、防水砂浆

普通万用表是一种测量（）的常用电气仪表。

A.功率、电导率、电压

B.电压、电流和电阻

C.功率、电流、电压

D.磁场强度、电导率、电压