乳液种子投料过程中,需要打开人孔加入的粉料是() A.引发剂1 B.活化剂6 C.活

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问题:

乳液种子投料过程中,需要打开人孔加入的粉料是()

A.引发剂1

B.活化剂6

C.活化剂4

D.活化剂5

考点:聚氯乙烯EPVC装置考试EPVC装置考试题库
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已知四面体P—ABC中,PA、PB、PC两两互相垂直,且PA=2,PB=3,PC=4,则该四面体外接球的表面积是       

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某患者椎管内麻醉时给予2%利多卡因2ml(含1:20万肾上腺素)后立即感心悸、气促、烦躁不安、面色苍白。最可能的诊断是

A.以上都不是

B.全脊椎麻醉

C.肾上腺素反应

D.过敏反应

E.局麻药毒性反应

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三国鼎立

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阅读理解

     We lived in a very quiet neighborhood. One evening I heard a loud crash in the street. Earlier that

evening my wife had asked me to go to the store to get some soft drinks. It seemed like this would be a

good time to let my teenage daughter Holly practice her driving, so I sent her to the store in my truck. At

dinner my son talked about how much he liked my truck. I enjoyed having it, but I said: "Guy, my heart is

not set on that truck. I like it but it is just metal and won't last forever. Never set your heart on anything that

won't last. "After hearing the loud noise, the whole family ran outside. My son shouted: "Dad! Dad, Holly

crashed your truck. "

     My heart sank and my mind was flooded with conflicting thoughts. Was anyone hurt? Who else was

involved? As I ran to the door, I heard a voice in my heart say: "Here is a chance to show Holly what you

really love. She'll never forget it. "

     The accident had occurred in my own driveway. Holly had crashed my truck into our other vehicle, the

family van. In her inexperience, she had confused the brakes and the gas pedal (油门]). Holly was unhurt

physically but when I reached her, she was crying and saying: "Oh, Dad, I'm sorry. I know how much you

love this truck. "I held her in my arms as she cried.

     Later that week a friend stopped by and asked what had happened to my truck. I told her the whole

story. Her eyes moistened (润湿) and she said: "That happened to me when I was a girl. I borrowed my

dad's car and ran into a log that had fallen across the road. I ruined the car. When I got home my Dad

knocked me to the ground and began to kick me. "

     Over 40 years later, she still felt the pain of the night. It was a deep wound on her soul.

     I remember how sad Holly was on the night she crashed our truck, and how I comforted her. One day,

when Holly thinks back on her life, I want her to know that I love her a thou- sand times more than any

piece of property.

     I repaired the van, but the dent (凹陷) in my truck is still there today. Every day it re- minds me of

what really matters in my life.

1. What caused the crash?

A. The brakes weren't working.

B. Holly stepped on the gas pedal instead of the brakes.

C. Holly was drinking a soft drink while driving.

D. The car got a flat tire and Holly lost control.

2. What happened to the author's friend after she ruined her dad's car?

A. She suffered physical pain for a long time.

B. She lost the courage to drive.

C. Her father kicked her out of the house.

D. Her father was violent toward her

3. Which of the following descriptions is true according to the passage?

A. When the author first learned about the crash, he regretted sending her daughter to the store.

B. The author allowed his daughter to use his truck because his son was too young to drive.

C. When the author saw the crash, he was sorry for the damage to his beloved car.

D. By comforting his daughter, the author showed how much more he loved her than his truck.

4. The main idea of the story is that        .

A. love is more important than possessions

B. parents should never let a teenager drive

C. there is no point blaming someone after an accident

D. we should always forgive others~ mistake

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特尔菲法的基本工作程序是()、()、()、()、()。

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