问题
单项选择题
老年人循环系统的随龄改变除外（）
A.心肌细胞体积增大
B.心肌细胞数目增多
C.心肌间质结缔组织增生
D.主动脉硬度增加
E.窦房结P细胞减少
答案
参考答案：B
搜题请搜索小程序“爱下问搜题”
老年人循环系统的随龄改变除外（）
A.心肌细胞体积增大
B.心肌细胞数目增多
C.心肌间质结缔组织增生
D.主动脉硬度增加
E.窦房结P细胞减少
参考答案：B
| 完形填空。 | |||
| The Best Holiday I was unbelievably proud of my nine-year-old daughter, Emily. 1 to buy a mountain bike, she'd been saving her pocket money all year, as well as doing small jobs to earn extra money. By Thanksgiving , she had collected only $49. I said, " You 2 have your pick from my bicycle 3 ". "Thanks, Daddy. But your bikes are so old. " She was right. All my girls' bikes were 1950s models , not the kind a kid today would 4 choose. As Christmas 5 near, Emily and I went bike shopping . As we left one store, she 6 a Salvation Army volunteer standing next to a big pot. "Can we give something, Daddy?" She asked. "Sorry, Em, I'm out of 7 . " Throughout December, Emily continued to work hard. Then one day, she made a 8 announcement. "You know all the money I've been saving?" she said hesitantly. "I'm going to give it to the poor people. " So one cold morning before Christmas, Emily handed her total savings of $58 to a volunteer who was really very 9 . 10 by Emily's selflessness, I decided to contribute 11 of my old bicycles to a car dealer who was collecting used bikes for poor children. 12 I selected a shiny model from my collection, however, it seemed as if a second bike took on a glow. Should I contribute two? No, one would be enough. But I couldn't 13 the feeling that I should give a second bike. When I later 14 the bikes, the car dealer said, "You're making two kids very 15 , sir . Here are your tickets. For each bicycle contributed, we're 16 away one chance to win a girl's mountain bike. " Why wasn't I surprised when that second ticket proved to be the 17 ? I like to think it was God's way of 18 a little girl for a sacrifice 19 her year--while giving her dad a lesson in the 20 . | |||
| ( )1.A. Promised ( )2.A. need ( )3.A. collection ( )4.A. seldom ( )5.A. drew ( )6.A. observed ( )7.A. work ( )8.A. disappointing ( )9.A. agreeable ( )10.A. Moved ( )11.A. one ( )12.A. While ( )13.A. express ( )14.A. returned ( )15.A. sweet ( )16.A. putting ( )17.A. present ( )18.A. greeting ( )19.A. under ( )20.A. process | B. Amazed B. should B. contribution B. likely B. became B. sensed B. charge B. surprising B. hopeful B. Shocked B. some B. As B. describe B. delivered B. healthy B. giving B. harvest B. praising B. before B. project | C. Determined C. must C. shop C. slightly C. went C. watched C. time C. formal C. thankful C. Persuaded C. two C. Because C. explain C. chose C. happy C. storing C. winner C. sheltering C. beyond C. struggle | D. Organized D. can D. club D. merely D. pulled D. noticed D. change D. public D. pitiful D. Demanded D. any D. Though D. shake D. shared D. fair D. signing D. chance D. rewarding D. within D. communication |