1980年爆发的两伊战争一共打了多少年？

Top student Lin Yijian had a problem recently . The 14-year-old boy from Xiamen used to get marks of over 110 points （out of 120 possible points）on his math tests . But during last semester’s final exams , his math score was only 90 points .

It was a shock . “I didn’t know what happened , ”said Lin , who kept feeling nervous and frustrated（沮丧的）about math during the following month. .

Like Lin , many of us have setbacks（挫折）in life . What would you do to deal with these setbacks ? Would you just let them be and give up ？

Lin chose to face his problem . His parents and teacher also gave him help . After some hard work he now gets marks between 100 and110 points on his math tests . Although he still isn’t at his original（原来的）level , Lin doesn’t panic anymore .

“Don’t be scared by setbacks ,”he said . “You will beat it . ”

Chen Xingzhu in Shenzhen also has a story to tell . The 15-year-old girl is not good at doing sit-ups（仰卧起坐），which is necessary for the coming high school PE entrance exam（体育中考）. One has to do at least 35 sit-ups in a minute to pass the test . Most of Chen’s classmates can do 40 . However , Chen could only do 20 .

Feeling worried , Chen decided to do something . She did sit-ups for half an hour every day after school . Now , after a month , she can do 30 sit-ups a minute .

“I finally found what made me slow through continuous （持续的）practice and then improved little by little , ”said Chen . “I believe next month I will be able to do 40 !”

小题1:What problem did Lin YIjian have recently ?

A．He used to get high marks .

B．He did well in math .

C．He did not so well as bofore in math .

D．He had no time to study math .小题2:According to the passage , which is NOT true among the following statements ?

A．Lin chose to face his problems .

B．His parents and teachers also helped him .

C．After some hard work , he now gets marks over 110 points .

D．Lin faced his problems instead of giving up .小题3:What problems does Chen Xingzhu have according to the passage ?

A．He is also not good at math .

B．He is also not good at PE .

C．He is also not good at sit-ups .

D．He is also not good at PE entrance exam .

某中学组建了A、B、C、D、E五个不同的社团组织，为培养学生的兴趣爱好，要求每个学生必须参加且只能参加一个社团，假定某班级的甲、乙、丙三名学生对这五个社团的选择是等可能的．

（1）求甲、乙、丙三名学生中至少有两人参加同一社团的概率；

（2）（文科）求甲、乙、丙三人中恰有两人参加A社团的概率；

（3）（理科）设随机变量ξ为甲、乙、丙这三个学生参加A社团的人数，求ξ的分布列与数学期望．

简述会计人员职业道德的主要内容。

收入分配的城乡差距、行业差距、职位差距三把“剪刀”剪掉的是一些居民的幸福感，剪出的是不公感。要加速改善这种状况，需要（   ）

①发挥市场在收入分配调节中的决定作用  

②加大再分配调节力度，规范收入分配秩序  

③提高劳动报酬在再分配中的比重        

④大力发展社会经济，实现人民共享发展成果

A．②④

B．③④

C．①④

D．①③

企业的一台机器设备，原始价值10000元，预计净残值率5%，预计使用5年，采用直线法计提折旧。在计提了一年的折旧后，该设备的账面净值为（）。

A.7500

B.7600

C.8000

D.8100