读下图数据分析并回答问题。 (1)按世界人口容量是100亿,根据世界第五个10

题型:综合

问题:

读下图数据分析并回答问题。

(1)按世界人口容量是100亿,根据世界第五个10亿人口的增长速度,世界人口将在_________年达到饱和。

(2)按我国人口容量是16亿,根据我国1994年人口自然增长率为1.1%进行计算,我国将在_________年达到饱和。

(3)当人口超过环境容量时,出现的后果有_____________________________________________。

(4)我国目前人口与环境、资源之间的矛盾是______________________________________________

考点:人口分布及其影响因素环境人口容量与人口合理容量
题型:综合

下列关于新生儿缺氧缺血性脑病的叙述,最能反应其脑组织的生化代谢改变的是

A.能量代谢异常

B.钙离子内流和自由基增加

C.细胞凋亡增加

D.兴奋性氨基酸增加

E.以上都正确

题型:综合

病人女性,36岁,诊断为消化性溃疡2个月,近日感上腹饱胀不适,疼痛于餐后加重,并有恶心、呕吐,大量呕吐后症状可以缓解,呕吐物含有发酵酸性宿食。

该病人最可能发生的并发症是()

A.上消化道大量出血

B.幽门梗阻

C.溃疡穿孔

D.溃疡癌变

E.肝性脑病

题型:综合

When I was in primary school, sometimes I would meet a girl of the same age as me. Lisa was never active, but she was always very sweet and nice. In the 5th grade she came to my class.

She was absent(缺席) a lot , and one day I had the courage to ask why. She told me she was sick, and she explained she wore a wig(假发) because her medicine made her lose her hair. We left it at that. Anytime Lisa came to class—seldom—I would hang around with her on the playground.

I received much ridicule (嘲笑) from my friends for this because they thought I was ignoring them for Lisa. My family education taught me to be nice, and I felt Lisa’s needs were much more important than others I knew.

It had been months since Lisa was in our class, and one day our teacher was crying. She explained Lisa died the day before and would no longer be our classmate. She told us Lisa had fought a battle (斗争)with cancer for years.

I was shocked. Lisa never spoke of her illness as if it could kill her. Well, all these years I have kept Lisa in my mind and heart. When I go through the important events in my life, I think of Lisa.

I’ve had a strong wish recently to find her mother and father. I’d like to tell them that though they never met me, their daughter had a sweet effect on my life. I have no idea what her parents’ first names are. I write to your column (栏目)and hope you can point me in the right direction.

Lisa was such a lovely girl. Maybe her parents would be comforted by the fact that after all these years they are not the only ones who remember her.

小题1:The underlined sentence in Para 2 probably means ________________.

A.we kept on talking about her illness later

B.we discussed the topic and then left together

C.we just stopped talking about her illness

D.we went away after talking about her illness小题2:Why was the author being laughed at?

A.Because she wore a wig to school

B.Because she always played with Lisa.

C.Because she cried in the classroom

D.Because she lost her friends because of Lisa.小题3: What did the author learn from Lisa?

A.To keep your illness a secret.

B.To be nice to everyone everywhere.

C.To face challenges in life bravely.

D.To put others’ needs above yours.小题4:The author wrote this passage mainly to __________.

A.remember a true friend

B.ask for help to find a friend’s parents

C.show her concern for a friend

D.tell her experience of fighting cancer

题型:综合

能够温肺化饮,治疗肺寒痰饮之咳嗽气喘,痰多清稀者的药组是()

A.干姜、细辛

B.附子、干姜

C.干姜、吴茱萸

D.附子、细辛

E.干姜、高良姜

题型:综合

与恒牙釉质相比()。

A.乳牙釉质有机质的含量较低

B.乳牙釉质的化学反应性更活泼

C.乳牙幼稚的硬度更大

D.乳牙釉质厚度更厚

E.乳牙釉质的气孔率和吸水率较小

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