纬度误差产生的原因是（）。 A.水银器 B.重心下移 C.液体阻尼器 D.阻尼重物

转化炉各点温差大时，为什么出口甲烷往往不合格？

2012年6月，甲市烟草专卖局内管派驻办在日常监管中采集到如下信息： 材料1：A县卷烟营销部2012年3-5月份部分品牌卷烟投放情况表

 注：“晓月”为甲市烟草公司4月份新引进的品牌；同时，为满足节假日期间市场需求，甲市烟草公司4月份加大了对“晨露”的投放量。 材料2：B县卷烟营销部部分零售户2012年4月份订购卷烟价格情况表

  材料3：C县金峰镇烟叶收购站2012年9月18日收购数据有以下异常：（1）烟农赵某交售烟叶1100公斤，其中C2F、C3F为980公斤，其余为下低等烟叶。（2）该烟站为按时完成收购任务，9月17日晚上21：30以后加班收购烟叶，并向C县烟草专卖局内管派驻组进行了备案。 请根据材料回答下列问题：

按照《工作规范》规定，材料1中的数据可以体现的预警种类是什么？简要说明原因。指出应确定为有效预警的异常卷烟品牌和月份（多答1个品牌倒扣1分）。（5分）

My name is Jane Eyre and my parents died when I was a baby. For ten years I lived a ___1___ life with my aunt and cousins who treated me unfairly. My cousins teased me and my aunt never showed me any ___2___. The only person who cared about me was the maid, Bessie. One day my cousin John 3 me: “You should go and beg, not live with rich folks like us!” After fighting with him I was locked in a room, where I ___4___ for hours crying.

Things ___5___ the same until a tall gentleman called Mr Brockehurst came to visit. My aunt told me that I was going to a school ___6___ by the gentleman. “Train her to be useful and humble,” said Aunt. Two days later I ___7___ my home.

At first my ___8___ at Lowood School was easy. The food was bad and I was often cold but I made ___9___ and enjoyed studying. But after an illness killed several students, new owners ___10___ the school and life improved. Six years later I ___11___ a teacher and was very happy. But eventually(最后) I felt that I should explore more of the world and found a job as a private teacher in a ___12___.

Before I left Lowood, I was ___13___ by Bessie, who told me that seven years ago my father’s brother had come ___14___ me but left again to go abroad. “He looked like quite a gentleman,” said Bessie. I wondered if he would ever look for me again.

My new life ___15___ at Thornfield Hall, a large country house, ___16___ a little girl called Adele. She was the adopted(被收养的) daughter of the owner of the house, Mr Rochester. He ___17___ stayed at Thornfield and ___18___ my time was mainly spent with Adele and the servants. My life was quite happy now although there was something ___19___ about my new home. Often I heard odd(奇怪的) sounds ___20___ from the top floor of the house.

1. A. happy     B. long    C. sad     D. comfortable

2. A. food       B. love    C. method      D. schooling

3. A. shouted at      B. cried over C. found out   D. talked with

4. A. lived      B. stayed C. studied       D. beat

5. A. appeared B. worked      C. seemed       D. remained

6. A. built       B. designed     C. owned D. opened

7. A. built       B. reached      C. left     D. sold

8. A. food       B. life     C. book   D. study

9. A. noise      B. friends       C. mistakes     D. faces

10. A. took over     B. took up      C. took off     D. took away

11. A. turned   B. met     C. became      D. found

12. A. school  B. home  C. library       D. country

13. A. taught   B. visited C. brought      D. required

14. A. looking for  B. looking after      C. looking into       D. looking at

15. A. stopped B. continued   C. started D. remained

16. A. showing       B. teaching     C. searching    D. wanting

17. A. often    B. hardly C. happily      D. quietly

18. A. yet       B. so       C. still     D. though

19. A. interesting    B. good   C. instructive  D. strange

20. A. come    B. drop   C. fall     D. go

患儿，男，12岁。患流痰3年，溃口位于左腰部，脓水稀薄，夹有败絮样物，伴有午后潮热，夜间盗汗，口燥咽干，咳嗽痰血，舌红少苔，脉细数。内治应首选

A．阳和汤

B．知柏地黄丸

C．清骨散

D．人参养荣汤

E．六味地黄丸

在Visual FoxPro中，用于清除所有除了以A开头的内存变量的命令格式为 【10】 。