加权算术平均数中的权数为（）。 A.变量值 B.次数的总和 C.变量值的总和 D.次 发布时间：2018-03-03 22:14 │ 来源：www.tikuol.com 题型：单项选择题 问题： 加权算术平均数中的权数为（）。A.变量值B.次数的总和C.变量值的总和D.次数比重
题型：单项选择题 完形填空。 Long, long ago, after a young woman finished her housework, she went to her grandmother and toldher about her life and how things were so hard for her. She didn't know how she was going to 1 it and wanted to give up. She was 2 fighting and struggling . It seemed as one 3 was solved, a new one would appear. Her grandmother took her to the 4 . She filled 3 pots with water and placed each on a high fire, and soon the pots came to 5 . In the first pot, she placed carrots, in the second, she placed 6 , and in the last she placed ground (被碾成粉末状的) coffee beans. She let them sit and boil. In about 20 minutes sheturned off the 7 and placed them in a separate bowl. 8 to her grandmother, she asked, "Tell me what you see." "Carrots, eggs, and coffee." She 9 . Her grandmother brought her closer and asked her to feel the carrots. She did and noticed that they were 10 . The grandmother then asked the granddaughter to takean egg and 11 it. After pulling off the shell, she observed the hard boiled egg. 12 , the grandmother asked the granddaughter to 13 the coffee. The granddaughter smiled as she tasted its rich smell then asked, "What does it mean, grandmother?" Her grandmother 14 that each of these objects had faced the same adversity (逆境) , boiling water.Each responded 15 . The carrot went in strong and hard, however, after 16 the boiling water, it softened and became weak. The egg had been easily broken. Its thin outer shell had protected its liquidinterior (内部) , 17 after sitting through the boiling water, its 18 became hardened. The ground coffee beans were unique, 19 . After they were in the boiling 20 , they had changed the water. "Which are you?" she asked her granddaughter.( )1. A. bring ( )2. A. tired of ( )3. A. question ( )4. A. bedroom ( )5. A. boil ( )6. A. coffee ( )7. A. doors ( )8. A. Driving ( )9. A. replied ( )10. A. hard ( )11. A. fry ( )12. A. Sadly ( )13. A. cool ( )14. A. explained( )15. A. simply ( )16. A. beating ( )17. A. or ( )18. A. dish ( )19. A. still ( )20. A. water B. pour B. absent fromB. problem B. study B. stop B. eggs B. lights B. Running B. wrote B. soft B. eat B. FortunatelyB. taste B. instructed B. slowly B. reducing B. so B. part B. however B. oil C. make C. curious aboutC. reality C. restaurant C. burn C. peers C. burners C. Referring C. found C. fresh C. break C. Therefore C. empty C. shouted C. similarly C. experiencing C. and C. inside C. thus C. steel D. help D. exciting about D. chance D. kitchen D. rise D. bowels D. taps(水龙头) D. Turning D. asked D. pretty D. sell D. Finally D. mix D. meant D. differently D. supplying D. but D. outside D. too D. sand 查看答案
题型：单项选择题 子宫肌瘤手术治疗错误的是（）。A.肌瘤伴月经过多继发贫血，药物治疗无效应手术B.肌瘤生长较快，怀疑有恶变应手术C.肌瘤引起膀胱、直肠压迫症状应手术D.已有子女者为防肌瘤恶变应手术E.年轻患者可行肌瘤切除术 查看答案