“麻屋子,红帐子,里面住着白胖子”是对花生果实的描述。花生在完成受精作用之后,发

题型:选择题

问题:

“麻屋子,红帐子,里面住着白胖子”是对花生果实的描述。花生在完成受精作用之后,发育成“麻屋子、红帐子、白胖子”的结构分别是

A.子房、胚珠、受精卵

B.子房壁、珠被、受精卵

C.受精卵、珠被、子房壁

D.受精卵、胚珠、子房

考点:传粉和受精开花与花的结构果实和种子的形成
题型:选择题

冻疮症见局部麻木冷痛,肤色青紫或暗红,肿胀结块,或有水疱,发痒,手足清冷,舌淡苔白,脉沉或沉细。内治方剂是()

A.当归四逆汤

B.四逆加人参汤

C.人参养荣汤

D.桂枝加桂汤

E.参附汤

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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.

题型:选择题

绘制列车运行图时,应尽量避免在旅客列车停站时间内,铺画货物列车通过。

题型:选择题

下列何种变化是绒癌的病理特点

A.镜下见多数坏死病灶内有少量绒毛结构

B.绒毛水肿,滋养细胞呈高度增生

C.间质血管血栓形成,细胞间变

D.多量出血坏死组织,大量滋养细胞增生,未见绒毛结构

E.大量滋养细胞高度增生并侵入子宫肌层,有少量绒毛结构

题型:选择题

缺乏下列哪种维生素会导致夜盲症?()

A.维生素A

B.维生素D

C.维生素C

D.维生素E

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