请你运用所学的化学知识判断，下列有关的叙述错误的是 A．利用太阳能等清洁能源代替

发布时间：2017-07-25 12:49 │ 来源：www.tikuol.com

题型：选择题

问题：

请你运用所学的化学知识判断，下列有关的叙述错误的是

A．利用太阳能等清洁能源代替化石燃料，有利于节约资源．保护环境

B．凡含有食品添加剂的食物对人体健康均有害，不可食用

C．为防止电池中的重金属等污染土壤和水体，应积极开发废电池的综合利用技术

D．几千万年前地球上一条恐龙体内的某个原子可能在你的身体里

考点：光导纤维新型材料（新型陶瓷、单晶硅等）塑料、纤维、橡胶复合材料

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美国药品生产管理有何主要特点

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完形填空。

     Todd was working at his gas station (加油站) at night when he heard over the radio that a   1   in Long
Island had been   2   by an armed man who had killed the night guard and got away with $150,000. "One
hundred and fifty thousand," Todd whistled, "Here's a fellow who just   3   into a bank and helps himself   4
so much money." Todd thought of the   5   with which he managed to get the amount of money he   6   to
start his gas station. So many papers to   7 , so much money to pay back. The news   8   twenty minutes later.
The gunman had   9   a car for a ride, and then  10  out the driver. He was possibly heading for the Southern
State Parkway in a white Ford. License plate (车牌) number LJR1939. The  11  of the announcer continued,
" 12  out for white cars. Don't pick up strangers, and all you folks at gas stations better not do  13  to a white
Ford car." Todd stood up and  14  to see out into the cold night. It was dark but Todd  15  the Southern State
Parkway was out there. Just then, Todd saw the headlights coming at him and a car pulled in for  16 . There it
was, a white Ford. He saw the number, LJR1939. "What should I do?" Todd had to make a quick  17 . "Yes,
sir?" Todd  18  while making up his mind for sure. " 19  him up," the man said sounding like any other  20 .
When the tank (油箱) was full,Todd quickly turned round and pointed a gun at the man. "Hands up and get out!"

( )1.A. store
( )2.A. searched for
( )3.A. walks
( )4.A. for
( )5.A. satisfaction
( )6.A. saved
( )7.A. collect
( )8.A. continued
( )9.A. bought
( )10.A. sent
( )11.A. news
( )12.A. Run
( )13.A. harm
( )14.A. tried
( )15.A. considered
( )16.A. directions
( )17.A. decision
( )18.A. wondered
( )19.A. Cover
( )20.A. visitor

B. bank
B. held up
B. looks
B. by
B. difficulty
B. made
B. prove
B. lasted
B. borrowed
B. found
B. warning
B. Look
B. favor
B. decided
B. knew
B. repairs
B. call
B. stopped
B. Fill
B. robber

C. station
C. taken over
C. marches
C. to
C. disappointment
C. offered
C. sign
C. spread
C. stolen
C. left
C. voice
C. Call
C. service
C. hoped
C. recognized
C. gas
C. movement
C. waited
C. Check
C. driver

D. house
D. broken into
D. drives
D. of
D. spirit
D. needed
D. write
D. arrived
D. stopped
D. pushed
D. advice
D. Set
D. business
D. happened
D. learnt
D. parking
D. remark
D. asked
D. Tie
D. rider

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人参皂苷A型皂苷酸水解后的异构化产物是（）

A.20（S）-原人参二醇

B.20（S）-原人参三醇

C.人参二醇

D.人参三醇

E.齐墩果酸

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欲将某一具有单链突出末端的双链DNA分子转变成平末端的双链形式，通常采用的方法有______和______。

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下列措施不可能有效预防钻杆折断故障的是（）

A、升降钻具或处理钻井事故时不要猛拉猛放

B、遇有复杂地层应采取措施避免钻井事故的发生

C、钻井时应选择大钻压、高转速

D、凡弯曲钻杆必须矫正后再用，有螺纹损伤者，必须剔除更换

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