随着温度的升高，黑体所发的光色变化顺序为：（）A、红-白-黄-蓝 B、蓝-白-黄-红 发布时间：2017-07-07 07:36 │ 来源：www.tikuol.com 题型：单项选择题 问题： 随着温度的升高，黑体所发的光色变化顺序为：（）A、红-白-黄-蓝B、蓝-白-黄-红C、红-黄-白-蓝D、红-白-蓝-黄
题型：单项选择题 完形填空。 In the early 1800's, a boy named John lived in an orphanage (孤儿院) with several other children. Every day was 1 working and Christmas was the one day of the year 2 the children did not work and receiveda gift - an orange. The children 3 it so much that they kept it for weeks, and even 4 -smelling it, 5 it and loving it. Usually they tried to preserve (保护) it for so 6 that it often went bad before they ate it. This year John knew he would soon be 7 enough to leave. He would save the orange until his birthday in July. If he preserved it 8 , he might be able to eat it on his birthday. Christmas day finally came. The children were so 9 as they entered the dining hall. In his excitement,John knocked over something, causing a big 10 . Immediately the master shouted, "John, leave the hall andthere will be no orange for you." John's heart 11 . He turned and ran back to the 12 room so that the children wouldn't see his tears. Then he heard the door open and the children entered. Little Elizabeth with a 13 on her face held out hersmall hands. "Here John," she said, "this is for you." As John 14 his head, he saw a big juicy 15 all peeled and quartered … Each child had sacrificed (舍弃) their own orange by 16 a quarter and had created a big, beautiful orange for him. John never forgot the sharing, love and personal 17 his friends had shown him that Christmas day. 18 that day, after he became rich, every year he 19 send oranges all over the world to children everywhere. His 20 was that no child would ever spend Christmas without a special Christmas fruit! ( )1. A. forced ( )2. A. as ( )3. A. needed ( )4. A. months ( )5. A. tasting ( )6. A. much ( )7. A. old ( )8. A. seriously ( )9. A. nervous ( )10. A. cry ( )11. A. jumped ( )12. A. cold ( )13. A. look ( )14. A. shook ( )15. A. gift ( )16. A. sharing ( )17. A. feelings ( )18. A. In return for ( )19. A. must ( )20. A. desire B. passed B. when B. wanted B. days B. watching B. soon B. strong B. carefully B. excited B. disappointment B. stopped B. small B. tears B. lifted B. surprise B. breaking B. affairs B. In case of B. would B. idea C. taken C. while C. valu ed C. years C. pressing C. long C. tall C. secretly C. pleasant C. surprise C. broke C. old C. comfort C. put C. orange C. eating C. relation C. In memory of C. might C. meaning D. spent D. which D. liked D. seasons D. touching D. far D. experienced D. softly D. eager D. noise D. settled D. lonely D. smile D. turned D. wonder D. taking D. sacrifice D. In search of D. should D. thinking 查看答案
题型：单项选择题 TBI（全身照射）中，肺剂量与间质性肺炎发生率的关系是（）A.无阈值B.具有一定的阈值，约在5-7.5GyC.具有一定的阈值，约在5.5-7GyD.具有一定的阈值，约在7.5-8GyE.具有一定的阈值，约在8-9.5Gy 查看答案