一棵二叉树第六层(根结点为第一层)的结点数最多为 【5】 。 发布时间：2017-07-19 17:37 │ 来源：www.tikuol.com 题型：填空题 问题： 一棵二叉树第六层(根结点为第一层)的结点数最多为 【5】 。
题型：填空题 by keeping down costs will Power Data hold its advantage over other companies. [ ]A. Only B. Just C. Still D. Yet 查看答案
题型：填空题 完形填空。 In college I had a part-time job at a shop downtown that sold doughnuts (a kind of cake) and coffee. 1 on a block where a dozen buses stopped, it provided food to people who had a few minutes to wait for their 2 . I 3 coffee in take-out cups and patiently waited on customers who'd point through the glass case and say, "No, not that one, the one two rows over." Every afternoon around four o'clock, a group of school children would 4 into the shop. Adults would glance in, see the crowd and 5 on. I didn't 6 if the kids waited for the bus in the shop.I came to know them pretty well. The older girls would tell me about their boyfriends; the younger ones would talk about school. The boys were quieter, choosing not to 7 their secrets, but still, they'd wait every day in the store 8 their bus came. Sometimes I'd hand out bus fare when a ticket went 9 --always repaid the next day. When it snowed, the kids and I would wait anxiously for a very 10 bus. They'd call their parents to let them know they were okay. At 11 time I'd lock the door, and the kids and I would wait in the warm store until their bus finally arrived. I 12 a lot of doughnuts on snowy days. I enjoyed my pals (伙伴), but it never 13 to me that I played an important part in their lives until one Saturday afternoon when a serious -looking man entered the store and asked if I was the girl who worked weekdays around four o'clock. I 14 it was true, and he introduced himself 15 the father of two my favorites--a brother and sister team. "I want you to know I appreciate what you do for my children. I 16 about them having to take two buses to get home. It 17 a lot that they can wait here with you keeping an eye on them." I told him it wasn't a big 18 and that I enjoyed the kids. "No, you don't understand. When they're with the doughnuts lady, I know they're 19 . It is a big deal. And I'm grateful." So I was the Doughnuts lady. I not only had received a 20 , I had become a landmark.( )1. A. Crowded ( )2. A. ride ( )3. A. tasted ( )4. A. burst ( )5. A. go ( )6. A. know ( )7. A. hear ( )8. A. when ( )9. A. losing ( )10. A. early ( )11. A. closing ( )12. A. ate up ( )13. A. stuck ( )14. A. admitted ( )15. A. for ( )16. A. care ( )17. A. means ( )18. A. pride ( )19. A. happy ( )20. A. letter B. Located B. chance B. cooked B. enter B. come B. mind B. notice B. before B. required B. late B. opening B. gave away B. reminded B. limited B. to B. worry B. takes B. pleasure B. active B. title C. Directed C. children C. made C. look C. pass C. understand C. share C. after C. missing C. fast C. proper C. made C. moved C. guessed C. as C. talk C. intends C. deal C. alive C. fortune D. Removed D. jobs D. poured D. point D. pull D. realized D. search D. until D. remaining D. big D. holiday D. produced D. occurred D. considered D. like D. wonder D. gives D. help D. safe D. love 查看答案