问题
选择题
自今年墨西哥发现首例甲型H1N1流感患者后，在世界多个国家都有发现病例。甲型H1N1流感病毒是引起该病的病原体，下列表明该病毒属于生物的是 [ ]
A．由有机物组成
B．具有细胞结构
C．能在人体细胞内繁殖
D．能使人体发病
答案
C
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自今年墨西哥发现首例甲型H1N1流感患者后，在世界多个国家都有发现病例。甲型H1N1流感病毒是引起该病的病原体，下列表明该病毒属于生物的是 [ ]
A．由有机物组成
B．具有细胞结构
C．能在人体细胞内繁殖
D．能使人体发病
C
| 信息归纳 | ||||||||||||||||
| Mike is a middle school student. He goes to school from Monday to Friday. His home is about 5 miles from school. He usually walks to school. It takes him 50 minutes to walk there. Nancy’s home is a little farther. It’s 20 miles from school. So she often takes the school bus. It takes her 15 minutes to get to school. Bob lives outside the city. It’s a town 30 miles away from his school. He takes the subway. It takes him 8 minutes to get to school by subway. He can have breakfast at home and then leave for the subway station. He studies very hard.
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