题干

某学期,一中学突然出现了30名流感患者,学校立刻采取紧急措施,①各班做好晨检,发现疑似病人,及时离校治疗.②让30名患病学生离校治疗;③将教室及公共场所进行消毒,同时室内通风换气;④建议全校学生接种流感疫苗.请分析回答下列问题.

(1)此病的病原体是____ ,传染源是____ .流感按传播途径属于____ 传染病.

(2)从学校预防传染病措施来看,它们各自属于预防传染病的哪种措施?①属于____ ,②属于____ ,③属于____ ,④属于____ 

(3)给学生接种流感疫苗,这属于____ 免疫.(填“特异性”或“非特异性”)疫苗可以看作是____ .(填“抗体”或“抗体”)

(4)一些同学为了原止流感,自己买了一些感冒药,如板蓝根冲剂,桑菊颗粒等,其包装上印有“OTC”字样,这些药品属于____ 药.(填“处方”或“非处方”);像罗红霉素这样的药品包装上是“RX”,那么它属于____ 药.

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    People from every corner flooded into the streets that Christmas Eve. "Frosty the Snowman," and "Jingle Bells" 1 in stores; on the pavements, the street singers performed happily. Everyone was 2 by someone else, delighted and cheerful. I was alone.

    As one of 8 kids of a Brazilian family, brought up in America's crowded apartment, I'd spent several years searching for aloneness. Now,3, at 27, a college student after the 4 with my girlfriend, every cell inside me wanted to be alone,5  not at Christmas. My family had 6to Brazil and my friends were 7with their own lives. Dusk was approaching, and the fact that I had to return to my 8 home made me sad. Lights from windows blinked (闪烁), and I hoped someone would 9 from one of those homes to invite me inside with a Christmas tree decorated with shiny fake snow and 10 presents.

    At a market, I felt more 11 when people were buying lots of goods, which12 the gifts we received as children in my mind. I missed my family and wanted to cry for wanting to be alone and for having achieved it.

    Outside the church, a manger (小耶稣) had been set 13. I stood with others watching the scene, some of them 14 themselves, praying. As I walked home, I realized that leaving Brazil was still a painful experience as I struggled with 15 I had become in 15 years in America. I'd mourned (悲叹) the 16, but for the first time, I recognized what I'd gained. I was independent, 17 and healthy. My life was still ahead, full of 18.

    Sometimes the best gift is the one that you give yourself. That Christmas, I gave myself 19 for what I'd obtained up to now and promise to go forward. It is the best gift I've ever got, the one that I most 20.