上腔静脉阻塞综合征属于肺癌的（） A.原发肿瘤引起的症状体征 B.肿瘤局部扩展引起的

某工厂利用废铁屑与一定质量分数废硫酸反应制取硫酸亚铁。现有1.2t废铁屑与一定质量分数9.8t废硫酸恰好完全反应（假设废铁屑中除铁以外的物质不溶于水且不与稀盐酸反应），反应后所得物质总质量为10.98t。我能完成下列计算：

⑴废铁屑中铁的质量。

⑵当废铁屑恰好完全反应时所得溶液中溶质的质量分数。

阅读理解。

     You know those days when it seems the world isn't on your side? When everything seems to go wrong.

However trivial (乏味的)? Well, now there's a cure-a website with the sole aim of putting a smile on your

face. The site 1000 awesomethings.com. lists those small, everyday pleasures which make life worthwhile

from finding a missing sock to pushing the button for the lift and finding that it is already waiting.

     It is the brainchild of Neil Pasricha, 30, who, beset by personal problems (his wife left him, for a start),

decided to write down one happy thought every day for 1 000 days.

     Since Neil launched the website in June 2008, it has had 17 million visitors and currently attracts more

than 50 000 people a day. Here are some of the most fanciful ideas but heart-warming thoughts...

     -Drawing on steamed-up mirrors with your fingers

     -Seeing on the television that the weather is much worse somewhere else

     -Throwing something at the rubbish bin and getting it in

     -When a book opens on the page you were looking for

     -Brushing your teeth with a new toothbrush

     -When the phone rings and it's the person you were just thinking about

     -When the thing you were already going to buy is reduced in the sale

     -Laughing at friends' passport photographs

1. What can make life worthwhile in the author's opinion?

A. Earning more money than others.

B. Establishing your own website.

C. Achieving your goal of being a celebrity.

D. A long hug when you need it.

2. Neil Pasricha launched the website because _____.

A. he decided to get rid of his personal problems

B. he wanted to find a new wife

C. he wanted to share his troubles with others

D. people are not as happy as before

3. What are the thoughts listed on the website like?

A. Common, fanciful and heart-warming.

B. Rare, small and pleasing.

C. Attractive, common and unforgettable.

D. Happy, humourous and coincidental.

54岁男性患者行择期胆囊切除术，麻醉维持用异氟烷、N₂0、芬太尼和筒箭毒碱。术毕应用吡啶斯的明和阿托品拮抗残余肌松后拔除导管，术后静注吗啡给予镇痛。术后1小时，患者心率为40次/分，最可能的原因是（）

A.吗啡

B.吡啶斯的明

C.普萘洛尔

D.阿托品的反常效应

E.芬太尼的后遗效应

下列消化道造影检查中，不属于下消化道造影的是( )。

A．十二指肠造影
B．空肠造影
C．回肠造影
D．升结肠造影
E．降结肠及乙状结肠造影

数据流程图