问题
判断题
评价疫苗保护率可以通过免疫抗体监测，一般认为疫苗的保护率达到50%以上，认为该疫苗的质量较好，可以有效抵御疾病的侵袭。
答案
参考答案：错
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评价疫苗保护率可以通过免疫抗体监测，一般认为疫苗的保护率达到50%以上，认为该疫苗的质量较好，可以有效抵御疾病的侵袭。
参考答案：错
| 阅读理解。 | ||||
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| 1. If an Englishman wants to know about what's happening in China, but he doesn't know any Chinese, he may watch TV at _____. | ||||
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| A. 19:00 on CCTV-1 Channel 2 B. 20:05 on CCTV-1 Channel 2 C. 22:00 on CCTV-2 Channel 8 D. 21:30 on CCTV-2 Channel 8 | ||||
| 2. If you are interested in football games, which of the following programs will you choose first? | ||||
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| A. China Sports Report. B. Special Sports. C. Today's Focus. D. China Music TV. | ||||
| 3. If you are going to Guangzhou by plane from Chongqing Airport, you'd better pay attention to the programme _____. | ||||
[ ] | ||||
| A. Weather Report B. World-famous Cities C. Economy 30 Minutes D. The Story of Earth |