果蝇是常用的遗传学研究的试验材料,据资料显示,果蝇约有104对基因,现有一黑腹果蝇的

题型:填空题 案例分析题

问题:

果蝇是常用的遗传学研究的试验材料,据资料显示,果蝇约有104对基因,现有一黑腹果蝇的野生种群,约有107个个体,请分析回答以下问题。

随机从该种群中抽出100只果蝇,测知基因型AA(灰身)35只,Aa(灰身)60只,aa(黑身)5只,请问A基因的基因频率为()a基因的基因频率为()

考点:高中生物生物的进化生物的进化题库
题型:填空题 案例分析题

某投资项目经计算得出,FNPV(15%)=10,FNPV(20%)=-30,则该方案的内部收益率为( )。

A.15.33%

B.15.67%

C.16.25%

D.18.3%

题型:填空题 案例分析题

杨某,在加压输液时由于未及时更换液体发生空气栓塞,此时病人应取的体位是

A.右侧卧位,头高脚低

B.右侧卧位,头低脚高

C.左侧卧位,头低脚高

D.左侧卧位,头高脚低

E.端坐位,双腿下垂

题型:填空题 案例分析题

读下图,回答问题。

(1)写出图中数字所代表的地理事物名称。

____省;②____海峡;③____洋;④____山脉;⑤____城市;⑥____城市;

(2)自20世纪60年代开始,台湾省利用自身的一些优势和条件,重点发展__________工业,形成“______”型的经济,工业产品在出口贸易中的比重稳步上升。

(3)台湾岛为什么被称为“美丽富饶的宝岛”?

________________________________________________________________________________

题型:填空题 案例分析题

患者男性,50岁,间歇性无痛性肉眼血尿,超声检查发现左肾下极一实性肿块,并向包膜外明显突出,超声检查时应特别注意

A.鉴别病灶的良、恶性

B.肝脏和胰腺有无转移

C.膀胱内有无转移

D.下腔静脉和肾静脉内有无癌栓

E.腹膜后有无淋巴结肿大

题型:填空题 案例分析题

阅读下面的短文,然后按照要求写一篇150词左右的英语短文。

An elderly carpenter (木匠)was ready to retire. He told his employer of his plans to leave the house-building business to live a more leisurely(休闲的) life with his wife and children. His employer(老板)was sorry to see his good worker go and asked if he could build just one more house as a personal favor. The carpenter said yes, but it was obvious that his heart was already not in his work . He built it impatiently and used poor materials. It was unfortunate for a wonderful career to end like that.

When the carpenter finished his work, his employer came to insect the house. Then he handed the front-door key to the carpenter and said, ”This is your house. It’s my gift to you.”

The carpenter was shocked! What a shame! If he had known he was building his own house, he would done it all so differently.

So it is with us. We build our lives, a day at a time, often putting less than our best into   building . Then with a shock, we realize we have to live in the house we have built. Therefore build it wisely( 明智)!

写作内容

1 请你以约30个词概括上文的主要内容。

2请你以约120词以“Build your life wisely ”为题谈谈你的想法,内容包括:

读了短文之后,你觉得文中木匠的做法明智吗?

我们能以木匠建房的态度去对待我们的生活吗?为什么?

3)不觉得我们应该如何对待生活才算是明智的?

写作要求

你可以使用实例或其他论述方法支持你的论点,也可以参照阅读材料的内容,但不要抄袭阅读材料的句子。

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