电子采购是指企业利用网络技术实行采购过程中信息采集、订单、支付等活动的一种采购行为。

阅读理解。

     I love it at night. It's peaceful. And when it cools down I sometimes do some ironing. I don't really care

for it. I work full-time and I am too busy for most housework. I remember the old woman who taught me

to iron. I was about 15 and I had to get a job taking care of a woman to make a living. She had been an

able-bodied, healthy woman until the accident that caused her to be paralyzed.

     The woman sat in an electric wheelchair all day. She could only move her head and arms. She would tell

me how to do things. She would teach me in great detail on the correct ways to do things. Her home was

perfect and beautiful. She would follow me around in her electric wheelchair to make sure I did everything

exactly right. I'm sure she had been a perfect homemaker. She would have me fold (折叠) everything,

including socks. I would complain silently and wish terrible things on her. She taught me the right way to

make the bed. I know sometimes she'd get frustrated (沮丧) and impatient with me. I knew she wanted to

do it herself. But she never shouted or scolded. She only insisted I do it right. I didn't like it much, but I did

it.

     Today I can iron pretty well. I know where to start on a shirt and the right way to do the trousers. Now

when I think about it, I don't think she is an old lady. I think she might have been about my age now. Anyway,

when I iron, I think of her and silently thank her for all the things I learned.

1. The writer used to take care of the lady because ________.

A. she wanted to learn to do housework

B. she was a friend of the lady's

C. she had to earn some money

D. she couldn't find a room to live in

2. The underlined word 'paralyzed' in the first paragraph may mean '________ '.

A. destroyed

B. deaf

C. seriously ill

D. unable to walk

3. The little girl was ________  when the lady taught her how to do housework.

A. encouraged to learn

B. unwilling to learn

C. delighted to learn

D. recommended to learn

4. Now the writer ________.

A. is still afraid of the lady

B. hates the strict lady

C. admires the disabled lady

D. is very grateful to the lady

下列式子中结果为负数的是（　　）

A．|-2|

B．-（-2）

C．-2^-1

D．（-2）²

厨房培训的注意事项有哪些？

（14分）在常温下，Fe与水并不起反应，但在高温下，Fe与水蒸气可发生反应。 应用下列装置，在硬质玻璃管中放入还原铁粉和石棉绒的混合物，加热，并通入水蒸气，就可以完成高温下“Fe与水蒸气的反应实验”。请回答该实验中的问题。

（1）写出该反应的反应方程式                               ；并指明该氧化还原反应的还原剂是        （填化学式，下同），氧化剂是         。

（2）圆底烧瓶中盛装的水，该装置受热后的主要作用是                            ；烧瓶底部放置了几片碎瓷片，其作用是                  　　      。

（3）试管中收集气体是      （填化学式），如果要在A处玻璃管处点燃该气体，则必须对该气体进行                       。

（4）该同学欲确定反应后硬质试管中还原铁粉是否完全反应，其中的固体成分有哪些，设计了如下实验方案：

①待硬质试管冷却后，取少许其中的固体物质溶于稀硫酸得溶液B；

②取少量溶液B滴加KSCN溶液，若溶液变红色则说明硬质试管中固体物质一定有          ，若溶液未变红色则说明硬质试管中固体物质的成分是           。

（5）该同学按上述实验方案进行了实验，结果溶液未变红色，原因是（用离子方程式表示）。

促进脂肪肝形成的有关因素有（）。

A.碳水化合物摄入过多

B.肝内形成的甘油三酯增多或氧化减少

C.脂蛋白合成增多

D.蛋白质摄入过多

E.进入肝脏的脂肪酸过少