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对于（7，4）结构的汉明码，监督位和编码效率分别为（ ）
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汉明码的码组C=[信息码]乘以矩阵（ ）得到。
医院感染常见病原体主要为____,常具有____。
医院感染监测的内容有:____、____、____、____、____。
Part 2 Vocabulary & Structure1. I don’t like listening to the same music over and ________ again.A. onB. roundC. overD. under2. He had a pain just underneath his ________ blade.A. shoulderB. elbowC. ankleD. arm3. Don’t eat your food so quickly. You’ll ________.A. shout B. chokeC. breathe D. blow4. He made a ________ recovery after his long illness.A. rare B. priority C. suddenly D. remarkable5. We believe that first ________ is a subject which should be taught in school.A. priorityB. recovery C. aidD. help6. She thinks that looking after older people should become our top ________.A. hopefullyB. suddenlyC. priorityD. recovery7. I haven’t seen my best friend for a long time, but ________ we’ll have the chance to meet soon.A. suddenly B. hopefullyC. recoveryD. unfortunately8. Sally would love to come to the party, but ________ she has to study tonight.A. fortunatelyB. suddenlyC. hopefully D. unfortunately9. We’re trying to ________ our daughter to take up a sport, as she isn’t very active.A. chokeB. encourageC. remark D. shout10. It’s so hot that I can hardly ________ in here!A. breathe B. chokeC. blowD. encourage11. I wasn’t hungry, _______________ (so/but) I didn’t eat anything for breakfast.12. The schools are closed _______________ (due to/however) the weather.13. I’ve been ill for the past week. _______________ (However/Because), I’m feeling better today.14. _______________ (Even though/Therefore) he’s smart, he still has to work hard to get good grades.15. We like our school _______________ (because/but) the teachers are friendly and professional.I’ll never forget the time I had to give my best friend (16) _______________ (first aid/over and over). It was the middle of the day and we were on holiday, (17) _______________ (because/so) we decided to go for a walk. We walked for hours and then realized we were lost. (18) _______________ (Fortunately/Unfortunately) it was very hot, and we didn’t have any water with us. Not long afterwards, my friend started to feel really ill. I didn’t know what to do! My (19) _______________ (priority/recovery) was to get her out of the sun, so we found some trees and sat down in the shade. I phoned my mum, who came to get us in the car. When we got home, I kept my friend cool by giving her lots of water and letting her rest. I’m happy to say she made a fast (20) _______________ (encouragement/recovery)!
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