问题
单项选择题 A1型题
暴露组与非暴露组医院感染几率之比称为（）.
A.构成比
B.比值比
C.相对危险度
D.医院感染发生率
E.医院感染患病率
答案
参考答案：C
解析：相对危险度是指暴露组与非暴露组医院感染几率之比，它是用来衡量所研究的暴露因素与发生医院感染之间统计学联系的强度大小的指标。相对危险度是表示暴露组的住院病人中发生医院感染的危险性的倍数。
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暴露组与非暴露组医院感染几率之比称为（）.
A.构成比
B.比值比
C.相对危险度
D.医院感染发生率
E.医院感染患病率
参考答案：C
解析：相对危险度是指暴露组与非暴露组医院感染几率之比，它是用来衡量所研究的暴露因素与发生医院感染之间统计学联系的强度大小的指标。相对危险度是表示暴露组的住院病人中发生医院感染的危险性的倍数。
| Reading comprehension. |
| China's Liu Xiang set a new 110 metres hurdles (跨栏) world record with a time of 12.88 seconds at a super grand prix meeting in Lausanne (洛桑) Switaerland (瑞士). "I feel perfect. I can't believe it. Everything is a dream." Liu told reporters. "I have a long future and I want to get better step by step," added Liu, who celebratted his 23rd birthday on Thursday. "I never thought I could break the world record. I'm feeling very tired, very happy and very excited. Switzerland is my lucky place. I love Switzerland and Lausanne and the fans here," Liu said. |  |
 | China won the 15th AFC Asian Women's Cup here on Sunday, beating host Australia 6-4 (full time 2-2, extra time 0-0, penalty (点球) kick 4-2). This was the eighth Asian Cup title clinched by China, who came from behind to tie Australia 2-2 in regular time of the final. |
| Wang Shipeng's three -pointer at the whistle put China through the group stage to reach the final 16 at the ongoing Basketball Men's World Championship in Japan. The clutch-time throw was his only score in the game, but was good enough to help China pass Slovenia 78-77. China's star center Yao Ming contributed 36 points and 10 rebounds (篮板球). |  |
| Fill in the blanks according to what you read above, Only one word for each blank. 1．Liu Xiang is 110 metres hurdles. 2．China has the 15th AFC Asian Women's Cup for times. 3．Yao Ming is the leading in Chinese Men's team. 4．World Expo, Olympics and World Cup are the international in the world. 5．From the four pieces of news we know that China is becoming and . |