下列公称直径为（）mm的预应力钢筒混凝土管道采用双橡胶止水圈试压。A.800 B.1

It is everyone’s duty to ______ our school a pleasant place to learn in.

A．find

B．set

C．keep

D．make

A schoolgirl saved her father's life by kicking him in the chest after he suffered a serious allergic (过敏的) reaction which stopped his heart.

Izzy, nine, restarted father Colm's heart by stamping (踩) on his chest after he fell down at home and stopped breathing.

Izzy's mother, Debbie, immediately called 999 but Izzy knew doctors would never arrive in time to save her father, so decided to use CPR.

However, she quickly discovered her arms weren't strong enough, so she stamped on her father's chest .Debbie then took over with some more conventional chest compressions (按压) until the ambulance arrived .

Izzy, who has been given a bravery award by her school, said: "I just kicked him really hard. My mum taught me CPR but I knew I wasn't strong enough to use hands. I was quite scared. The doctor said I might as well be a doctor or a nurse. My mum said that Dad was going to hospital with a big footprint on his

"She's a little star," said Debbie, "i was really upset but Izzy just took over. I just can't believe what she did. I really think all children should be taught first aid. Izzy did CPR then the doctor turned up. Colm had to have more treatment on the way to the hospital and we've got to see an expert."

Truck driver Colm, 35, suffered a mystery allergic reaction on Saturday and was taken to hospital, but was sent home only for it to happen again the next day. The second attack was so serious that his airway swelled, preventing him from breathing, his blood pressure dropped suddenly, and his heart stopped for a moment.

He has now made a full recovery from his suffering.

小题1:Izzy kicked her father in the chest ______ .

A．to express her helplessness

B．to practise CPR on him

C．to keep him awake

D．to restart his heart小题2:What's the right order of the events?

1Izzy kicked Colm.

2Debbie called 999.

3Izzy learned CPR.

4Colm's heart stopped.

A．3124

B．4231

C．3421

D．4312小题3:What does Paragraph 8 mainly talk about?

A．What Colm suffered.

B．Colm's present condition.

C．What caused Colm's allergy.

D．Symptoms of Colm's allergic reaction.小题4:Why does the author write the news?

A．To describe a serious accident.

B．To prove the importance of CPR.

C．To report a 9-year-old girl's brave act.

D．To call people's attention to allergic reaction.

(三级)国际邮件分为哪几类?按不同的处理方式如何划分？

某工程已经监理工程师批准的双代号网络计划如下图所示(单位：月)。

该工程施工中，G工作因材料供应问题，未能及时开工将造成总工期延误1个月，为保证工期，施工单位决定压缩相关工作持续时间，已知压缩D，E，G，H工作将相应分别增加费用1万元、2万元、3万元、4万元。

根据材料，回答以下问题：

该工程关键线路是（）。

A．①→②→④→⑥→⑧

B．①→②→⑤→⑥→⑧

C．①→②→⑤→⑦→⑧

D．①→③→⑦→⑧

下列关于评价食品卫生质量的说法中，错误的是（）。

A.食品中大肠菌群超标表明曾受到粪便污染

B.大肠菌群可作为肠道致病菌污染食品的指示菌

C.菌落总数是食品清洁状态的标志

D.食品中细菌总数超标表明对人体危害大

E.食品中菌落总数可用来预测食品的耐保藏性