生物体内作为遗传物质组成成分的糖类是()A、C6H12O6和C12H22O11B、C

题型:单项选择题

问题:

生物体内作为遗传物质组成成分的糖类是()

A、C6H12O6和C12H22O11

B、C5H10O5和C6H12O6

C、C5H10O5和C5H10O4

D、C12H22O11和(C6H10O5)n

考点:高考生物高考生物题库
题型:单项选择题

肝火犯胃所致的胃痛,胁痛宜用()

A.四逆散

B.养血安神丸

C.左金丸

D.九气拈痛丸

E.胃苏颗粒

题型:单项选择题

患者,女性,28岁,自8岁起,每年春季反复出现喘息发作、咳嗽,使用抗生素、异丙肾上腺素吸入有效。2天前打扫卫生时又发生喘息,不能平卧。查体:体温37.7℃,血压150/95mmHg,心率120次/分,大汗淋漓、口唇发绀,双肺散在哮鸣音。实验室检查:血气分析PaO250mmHg、PaCO250mmHg,血常规:白细胞11×109/L。

该患者可能的诊断是()

A.慢性支气管肺炎急性发作

B.支气管肺炎

C.慢性支气管肺炎喘息型

D.支气管哮喘发作期

E.心源性哮喘

题型:单项选择题

第一节. 短文改错(共10小题;每小题1分,满分10分)

文中共有10处语言错误,每句中最多有两处。错误涉及一个单词的增加、删除或修改。

增加:在缺词处加一个漏字符号(∧),并在其下面写出该加的词。

删除:把多余的词用斜线(\)划掉。

修改:在错的词下划一横线,并在该词下面写出修改后的词。

注意:1.每处错误及其修改均仅限一词;

2.只允许修改10处,多者(从第11处起)不计分

Dear editor,

I’m a college student and I’ll graduating in half a year. I’m very worried about my future, because find a good job is so much difficult. At the moment, my parents want me to be a teacher, and I don’t like that idea. During my holiday break, I work part-time as a tour guide in my hometown. I liked job very much. But my parents didn’t agree with me. They thought the work was difficulty, even though one could make a lot of money. That is the most important to me is that being a tour guide won’t take me far from home. I always consider what my parents say, but it’s hard for me to take a decision . Could you give me some advices?                                                                                                            

Yours

Oliver

题型:单项选择题

有如下程序:
#include <stdio.h>
main()
float x=2.0,y;
if(x<0.0) y=0.0;
else if(x>10.0) y=1.0/x;
else y=1.0;
printf("%f/n",y);

该程序的输出结果是( )。

A.0.000000

B.0.250000

C.0.500000

D.1.000000

题型:单项选择题

下列关于聚合门尼叙述正确的是()。

A.铝硼比越高,门尼越高

B.铝硼比越低,门尼越高

C.门尼与铝硼比无关

D.铝硼比越高,门尼越低

更多题库