乙脑疫苗的接种正确的是()
A．接种乙脑疫苗可提高人群的特异性免疫力
B．初种对象主要为6～12个月的婴幼儿
C．疫苗接种在乙脑开始流行前第1个月完成
D．初种后第2年和6～10周岁分别加强注射1次，对于初入疫区者可按初种方法接种2次。
E．不能与伤寒三联菌疫苗同时接种，有中枢神经疾患和慢性酒精中毒者禁止接种
参考答案：A, B, C, D, E
| 完形填空。 What will the life in the 2lst century be like? I'm sure it will be different from life in the 20th century, because many changes will take place in the new century. The population is 1 fast. There will be more and more people in the world and most of them will live 2 than before. 3 will be much smaller and more useful, and there will be at least one in every home. And computer studies will be one of the important subjects at 4 . People will work fewer hours than they did in the 20th century, and they will have more free time for sports, 5 TV and travelling. Travelling will be 6 . And many more people will go to other countries for holidays. There will be changes in our food, too. More land will be used for building new towns and houses. Then there will be less room for cows and sheep, so 7 will be more expensive. Maybe no one will eat it every day, 8 they eat more vegetables and fruit. Maybe people will be healthier. Work in the future will be 9 , too. Dangerous and hard work will be done by robots. 10 this, many people will not have enough work to do. This will be a problem. | |||
|