一质量m= 2kg的物体，静止在粗糙水平地面上．某时刻，将一水平恒力F作用在该物

阅读下面短文，在短文的空格内填入适当的词，使其内容通顺。

（ 每空格限填一词）（本题共五小题，每小题2分，满分10分）

Liu Xiang is not an overnight success. He was born in Shanghai ___小题1:__ 13th July, 1983 and, like many Olympic sports stars, he started training when he was very __小题2:. In Grade Four, he went to the Junior Sports School of Putuo District of Shanghai. Liu was encouraged at first to train as a high jumper. Then, in 1998, his skill at hurdling was noticed by his _小题3:_____ Sun Haiping. In 2004, he __小题4:___ the first Olympic Gold medal for China in Athens, Greece. Now he is training hard to go for more __小题5:__for China. Just because he was trained for gold!

回答人民币的定义。

某男，拔鼻毛后有发烧和左鼻前部发胀、灼痛，未予重视。次日突然寒战、高热、头痛、左侧眼睑水肿及眼球突出。最可能的诊断是

A．鼻前庭炎并发海绵窦血栓性静脉炎

B．鼻前庭疖肿并发海绵窦血栓性静脉炎

C．鼻前庭炎并发乙状窦血栓性静脉炎

D．鼻前庭疖肿并发乙状窦血栓性静脉炎

E．上述都不是

儒、道思想犹如中国古代思想的双臂。下列言论中，最能体现道家因循自然、崇尚无为思想的是( )

A．不以人助天
B．制天命而用之
C．天地不仁，以万物为刍狗
D．天行有常，不为尧存，不为桀亡

国家安全委员会主要职责是制定和实施国家安全战略，推进国家安全法治建设，制定国家安全工作方针政策，研究解决国家安全工作中的重大问题。