哪种细菌为专性需氧菌
A．铜绿假单胞菌B．金黄葡萄球菌C．大肠埃希菌D．空肠弯曲菌E．幽门螺杆菌
参考答案：A
解析：铜绿假单胞菌为专性需氧菌。
Look，read and write. （看图，读一读，写单词)
1. Look ! Here is a _____. (aritbb)
2. I have a lovely _____. (god)
3. Look at the dress. It is _____. (cein)
4. How many tomatoes are there? _____. (elvewt)
5. This is my shirt. It is too _____. (malls)
生活在俄罗斯的人和我们相比，鼻子看上去较大，其实这是对寒冷环境的一种适应．试分析其原因．
