下列会计要素中，反映企业经营成果的有( )。 A．收入 B．利润 C．费用 D．现

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 .

鉴别氯化铁溶液与氢氧化铁胶体最简便的方法是（   ）

A．萃取

B．蒸馏

C．过滤

D．丁达尔效应

现况调查中偏倚的防止方法主要是（）。

A.坚持随机化抽样，减少漏查，统一检测标准，加强调查的监督和质控

B.坚持多个医院选择病例，减少漏查，统一检测标准，加强调查的监督和质控

C.坚持随机化分组，减少不依从，统一检测标准，加强调查的监督和质控

D.坚持随机化选择研究对象，尽量用新发病例，暴露测量标准应统一，加强调查的监督和质控

E.以上方法都不对

“钟山风雨起苍黄，百万雄师过大江”所反映的历史事件是

A．辽沈战役

B．淮海战役

C．平津战役

D．渡江战役

脓肿