问题
单项选择题
有助于多发性硬化诊断的特征性CT表现为（）
A.大片低密度
B.多灶性的低密度分布在白质及灰质
C.基底节区有多灶性的低密度
D.多灶性的低密度主要分布于脑室周围的白质内，急性期病灶周围可有增强
E.以上均不正确
答案
参考答案：D
搜题请搜索小程序“爱下问搜题”
有助于多发性硬化诊断的特征性CT表现为（）
A.大片低密度
B.多灶性的低密度分布在白质及灰质
C.基底节区有多灶性的低密度
D.多灶性的低密度主要分布于脑室周围的白质内，急性期病灶周围可有增强
E.以上均不正确
参考答案：D
| 完形填空。 |
| There was a pleasant feeling of anticipation (期盼) in the air on my first working-as a teacher day. But it was not to last. It was a Saturday, and I was on the way to my aunt's. Sitting in the bus, I 1 what I would do to deal with my little sister and her friend, who were both in 2 third year of primary school. My 3 and that girl's mum expected me to help their children with spoken English, and had agreed to 4 me. I started my two girl "class". Their school books were on the desk, but I didn't use them, 5 my own teaching plan. At the beginning, the girls were calm and studied 6 . But an hour later, after a 15 minute break, they quit concentrating on study. Instead, they ran about the 7 giggling (咯咯笑) madly, paying 8 attention to me. The room got messier-books and toys covered the floor. I was just about to 9 this when suddenly the door opened. Their parents looked stunned (受惊吓的). My aunt asked, "You have finished the task?" My face 10 , I lied and nodded slightly. Before the girl's mum could hand me the money, I 11 out of the house. I knew I couldn't accept it. Being a teacher with a messy ending is surely 12 … |
| ( )1. A. expected ( )2. A. my ( )3. A. teacher ( )4. A. pay ( )5. A. making ( )6. A. quietly ( )7. A. yard ( )8. A. no ( )9. A. keep ( )10. A. shaped ( )11. A. rushed ( )12. A. unusual | B. planned B. her B. friend B. call B. following B. happily B. floor B. a lot B. stop B. frozen B. went B. unforgettable | C. thought C. our C. aunt C. visit C. noticing C. carefully C. table C. a little C. warn C. burning C. walked C. unlucky | D. guessed D. their D. mum D. invite D. correcting D. hardly D. room D. more D. solve D. hiding D. rode D. uninteresting |