腐蚀性试验项目中Cl-的试验方法是（）。 A.电位法 B.EDTA容量_爱下问搜题

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问题单项选择题

腐蚀性试验项目中Cl-的试验方法是（）。

A.电位法

B.EDTA容量法

C.摩尔法

D.酸滴定法

答案

参考答案：C

完形填空

     About five years ago I began to study at a new school, when my family moved to Iowa. I was just a
little  1 , wondering whether I could get on well with my classmates.
     Lucy, a girl in my   2 , who I thought wasn't ready to accept a  3 girl, didn't like me from the start.  4 , I was pretty sure she hated me. When I asked her a question, I could  5 she thought I was a total
fool.
    My teacher made us  6 next to each other for the last term. Lucy was not happy. However, I kept
  7 at her, though she rolled her eyes, and I kept telling her that she was beautiful.
     Finally, Lucy let me  8   to her, even when her friends were around.She  9 telling me how beautiful I
looked. I still remember the  10 time when she smiled at me and said that, and I smiled right back,
saying  11 to her. One day Lucy invited me over to her house, and talked to me all the time  12 her
other friends. That day Lucy, the girl who had hated me, called me her best deskmate. After that, we  13
friends for years.
     I moved to Arizona later, but I will never  14 Lucy.I still remember she considered me her  15 at
first. During that time it felt like I was  16 my time, and losing my dignity (尊严), but I still smiled at Lucy
even when she  17 me.I'm not stupid; I didn't think she was  18 in doing those things, but I still put up
with it. And finally we became great friends.
     Not long ago, I read the  19 of Abraham Lincoln, "Am I not destroying my enemies when I make
friends of them?" I smiled, thinking of
     Lucy. It just  20 me how great a friend I used to have.

( )1. A. sad
( )2. A. school
( )3. A. positive
( )4. A. Usually
( )5. A. describe
( )6. A. sit
( )7. A. shouting
( )8. A. write
( )9. A. started
( )10. A. rare
( )11. A. hello
( )12. A.according to
( )13. A. served
( )14. A. forget
( )15. A. enemy
( )16. A. changing
( )17. A. took care of
( )18. A. right
( )19. A. books
( )20. A. taught

B. surprised
B. class
B. successful
B. Actually
B. prove
B. speak
B. laughing
B. reply
B. minded
B. next
B. thanks
B. thanks to
B. appeared
B. leave
B. hero
B. managing
B. took the place of
B. proud
B. words
B. advised

C. worried
C. team
C. new
C. Finally
C. tell
C. stand
C. pointing
C. talk
C. considered
C. last
C. sorry
C. except for
C. seemed
C. miss
C. friend
C. wasting
C. made fun of
C. interested
C. stories
C. warned

D. eager
D. city
D. common
D. Fortunately
D. accept
D. live
D. smiling
D. listen
D. avoided
D. first
D. bye
D. instead of
D. stayed
D. teach
D. leader
D. enjoying
D. got away from
D. busy
D. experiences
D. reminded

填空题

用化学符号表示：锌元素、氯离子、硫酸亚铁、可用于人工降雨的氧化物是；可用于实验室制取氢气的酸是；加入汽油中可用作汽车环保燃料的液体。