实践活动（黑格尔）

设I={1，2，3，4，5}，A={2，3，4}，B={4，5}，则C₁A∩B=______．

患者男，36岁，突发左上腹疼痛6h，伴头晕、出冷汗，无恶心、呕吐。

诊断考虑的疾病为（）。（提示体检：T38.5℃，P120次/min，R28次/min，BP110/70mmHg。左下肺呼吸音消失，腹软，左上腹轻压痛。心电图出现SⅠQⅢTⅢ征。）

诊断考虑的疾病为（提示体检：T38.5℃，P120次/min，R28次/min，BP110/70mmHg。左下肺呼吸音消失，腹软，左上腹轻压痛。心电图出现SⅠQⅢTⅢ征。）

A.急性胰腺炎

B.急性心肌炎

C.急性心肌梗死

D.急性胃炎

E.急性肺血栓栓塞症

F.左侧胸膜炎

阅读理解。

     Pop singer star Britney Spears would feel happy (or amused) if she knew what her songs can do for some

German farmers.

     Recently, some farmers in Germany have been playing Britney's songs very often on their farms. Not that

they like her songs a lot, but that her songs can drive away the troublesome wild boars (野猪)!

     As the boars are an endangered animal in Germany, people can't shoot or kill them. Farmers there tried their

best to stop the boars from destroying their crops but failed.

     One day, one of the German farmers noticed that all the boars were scared away when he started to play

one of Britney's songs!

     The farmer was delighted and then he tried some other singers on the boars. Madonna's and Robbie

Williams' songs didn't work at all.

     Only Britney's songs seemed to have the magical power. Every time her songs were played on his farm, the

boars would go running away in a rush.

     It's reported quite a number of German farmers are using Britney's magic songs to protect their vegetable

and fruits.

1. The farmers play Britney's songs on their farms so that _____. [ ]

A. they can protect their crops and fruits

B. they don't feel tired from working

C. their crops may grow better

D. they can get some money from the music company

2. The farmers cannot shoot the boars because _____. [ ]

A. they are not allowed to own guns

B. they are afraid the boars might attack them

C. the boars are protected by law

D. the boars are owned by some other farmers

3. Which of the following statements is true ac-cording to the text? [ ]

A. Animals like to listen to music by different singers.

B. Not all the singers' songs are liked by the boars in Germany.

C. Boars in Germany like Britney's songs very much.

D. Britney's songs seem to be quite different from other singers'.

Whenever she is sad, her parents can always _____   .       [ ]

A. bring her up                    

B. cheer her up        

C. give her up                      

D. come on

液体静压力是指液体处于静止状态下（）所受到液体的作用力。

A、单位质量上

B、单位体积上

C、单位面积上

D、单位重量上