变压器事故过负荷时,不能采取何种措施消除过负荷()A、投入备用变压器 B、将变压器二

题型:单项选择题

问题:

变压器事故过负荷时,不能采取何种措施消除过负荷()

A、投入备用变压器

B、将变压器二次侧并列运行,使得两台变压器负荷均衡,但接近满载

C、指令有关调度限制负荷

D、指令有关调度转移负荷

考点:变电运行工考试变电运行工考试题库
题型:单项选择题

“果冻”产品包装袋上的品名和配料如下:

[品名] A D钙营养布丁

[配料] ①水 ②蔗糖 ③奶粉 ④乳酸钙 ⑤柠檬酸 ⑥维生素A ⑦维生素D ⑧食用色素。请回答:

(1)该产品属于营养素且为氧化物的是(填名称,下同)           

(2)幼儿及少年缺钙会患            ,该产品中           物质可以补充钙元素

(3)人体缺少配料中的            ,会引起夜盲症。所以,人体摄入营养要均衡。

(4)人体缺铁会引起贫血,可以在该奶粉中加入           物质可以补充铁元素。

题型:单项选择题

我国历代王朝为加强中央对地方的管辖,先后推行了各种地方行政管理制度。按照时间顺序排列,以下选项是

①行省制 ②州郡县制 ③郡县制 ④道州县制 [ ]

A、①②③④

B、③②④①

C、③④②①

D、②④①③

题型:单项选择题

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

题型:单项选择题

氽的菜肴在烹制上有()方法。

A、二种 

B、三种 

C、一种 

D、四种

题型:单项选择题

患儿男,7岁,因“反复呕吐、吞咽困难半年,胸骨后烧灼感,呛咳1周”来诊。食管钡餐造影:见“鸟喙”征。

关于贲门失弛缓症,叙述正确的是()

A.呕吐物为胃内容物

B.吞咽困难是本病最早、最常见症状

C.确诊依赖内镜检查

D.食管下扩约肌压力正常或降低

E.治疗首选Heller食管下段肌层切开术

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