红外分析仪在用于液体分析时，其源端与检测器端应（）安装。A、水平 B、垂直 C、倾斜 D、

可用来代替钢材制造某些曲轴、连杆和凸轮轴等重要零件的铸铁为( )。

A．灰口铸铁

B．球墨铸铁

C．蠕墨铸铁

D．耐磨铸铁

下列经营行为中，符合规定的有（）

A.经营者销售商品时以明示方式给予对方折扣

B.经营者给予对方折扣，如实入账

C.经营者向中间人提供劳务报酬，未如实入账

D.经营者在商品销售中让利

阅读理解

     My brotherinlaw opened the drawer of my sister's cupboard and took out a package.He said, "This is

a new silk slip (衬裙). Jane bought it in New York nine years ago.She never wore it.She was saving it for a special occasion.I guess this is the occasion."

     It was an exquisite (精美的) handmade silk slip.The price tag on it was still attached.

     He took the slip from me and put it on the bed, with the other clothes we were taking to the mortician (殡仪员). His hands lingered on the soft material for a moment, and then he shut the drawer and turned

to me, "Don't ever save anything for a special occasion.Every day you're alive is a special occasion."

     His words have changed my mind.I'm spending more time with my family and less time on meetings.

I'm trying to recognize these moments now and cherish them.I'm not saving anything.I wear my good skirt

to the market if I feel like it.I can pay $28.49 for a small bag of groceries.I'm not saving my good perfume

for special parties.If something is worth seeing, hearing or doing, I want to see, hear and do it now.

"Someday"_has_disappeared in_my vocabulary.

     I'm not sure what Jane would have done if she had known she'd not be here for the tomorrow.I'm

guessing Jane would have called family members and a few close friends.She might have apologized to

her former friends for their past quarrels.She'd have gone out for a Chinese dinner, her favorite food.

     I'm trying hard not to put off, hold back, or save anything that would add laughter to our lives.Every

morning I open my eyes, I tell myself that every day, every minute, every breath is a gift.

1. Why didn't Jane wear the new silk slip?

A. She meant to wear it on her death.

B. She wanted to save it for her sister.

C. She thought it was too dear.

D. She saved it for a special occasion.

2. After Jane's death, the author begins to________.

A. treasure the simple pleasure of life

B. spend more time having meetings

C. save more money for necessities

D. care about her special parties

3. What does the underlined sentence "'Someday' has disappeared in my vocabulary."

     (in paragraph 4) mean?

A. I prefer to leave out the word "someday" in my speech.

B. "Someday" is found missing from my old dictionary.

C. I will not delay enjoying the pleasure of life.

D. I decide not to enjoy something good at the moment.

4. It can be inferred from the passage that________.

A. it makes sense to follow our dream

B. we tend to leave good things until the last minute

C. we should take pleasure in our work

D. it is meaningless to save something for the future

波士顿矩阵适用于分析某种组合中（）在组合中的位置，因此，也适用于（）的评价分析。

2009年2月19日一旅客持2月20日M次A站—B站空调硬座特快联合票，票号B13756，票价76.00元，在A站要求改乘当日非空硬座特快到B站，票价44.00元，售票员在该旅客原票背面注明改乘2月19日N次，要求旅客持原票乘车去B站，请问A站售票员做法是否正确，说出理由。