使用（），可以将某个SQL语句的执行依赖于另一个查询语句的执行结果。 A.内连接查询 发布时间：2018-05-17 08:46 │ 来源：www.tikuol.com 题型：单项选择题 问题： 使用（），可以将某个SQL语句的执行依赖于另一个查询语句的执行结果。A.内连接查询B.子查询C.外连接查询D.合并查询
题型：单项选择题 哪几项是去甲肾上腺素的特点（）A.临床常用静脉滴注给药B.性质不稳定，遇光或空气易氧化分解，在中性尤其碱性溶液中极易氧化变色而失效C.主要激动α1、α2受体D.大剂量时可使血糖下降E.适当稀释后口服，可使食管和胃黏膜血管收缩，达到局部止血效果 查看答案
题型：单项选择题 完形填空。 In the United States there was an unusual story telling of the daughter of a mechanic (技工). One day whilewalking along the bank of a lake, the girl 1 to see 20 eggs laid by a wild goose. After some time the girl 2 the mother would not return to her eggs and she 3 to take them home. There she carefully 4 the eggs inthe heat of a lamp. Several days 5 the eggs broke and the baby geese came into the 6 . Geese are known to take the first living thing they see as their mother. 7 , to these young geese, the girl was their mother. As they 8 , the girl was able to 9 her birds to run across the grass, but she could not teach them to 10 .The girl became increasingly worried about this, both when 11 and in her dreams. Later, she had an 12 : She would pilot a plane to guide them in 13 . She asked her father for a plane and he assembled (组装)a small aircraft for her. Caring about 14 safety, the father decided to pilot the plane himself. However, the birds did not 15 orfollow him, and 16 slept in the grass. One day, the girl 17 into the plane, started it and soon left the 18 . Seeing their mother take to the air, the birds 19 flapped(拍打) their wings and 20 . She flew the plane freely in the sky, her young birds following. ( )1. A. managed ( )2. A. realized ( )3. A. helped ( )4. A. placed ( )5. A. ago ( )6. A. family ( )7. A. But ( )8. A. increased ( )9. A. ask ( )10. A. fly ( )11. A. asleep ( )12. A. idea ( )13. A. sky ( )14. A. his ( )15. A. respect ( )16. A. so ( )17. A. climbed ( )18. A. house ( )19. A. secretly ( )20. A. looked awayB. attempted B. expected B. decided B. protected B. out B. lake B. Also B. improved B. lead B. race B. away B. opinion B. space B. her B. remember B. instead B. looked B. floor B. disappointedly B. set out C. happened C. imagined C. afforded C. treated C. later C. home C. Thus C. rose C. want C. swim C. around C. explanation C. flight C. their C. recognize C. hardly C. reached C. water C. patiently C. went by D. supposed D. admitted D. meant D. examined D. long D. world D. Still D. grew D. allow D. sing D. awake D. excuse D. plane D. its D. receive D. too D. fell D. ground D. eagerly D. turned back 查看答案
题型：单项选择题 建设部、国家文物局请示 国务院、国务院办公厅： 前年，国务院批准了21个城市为国家历史文化名城，这对制止“建设性破坏”、保护城市传统风貌起了重要作用。 不过除已批准的国家历史文化名城外，还有一些城市古迹十分丰富，……按照国发 (2002)106号文关于审定国家历史文化名城的原则，进行反复酝酿，提出37个城市，建议作为第二批历史文化名城(名单附后)…… 请即批转各地区、各部门研究执行。 附件：第二批国家历史文化名城名单 第二批国家历史文化名城简介 另，建设部和国家文物局拟成立“保护历史文化名城联署办事小组”，如无不妥，请批准。 建设部、国家文物局 二○○五年七月一日 查看答案