问题
单项选择题
这个路面标记是何含义？（）
A．最低限速为100公里/小时
B．平均速度为100公里/小时
C．解除100公里/小时限速
D．最高限速为100公里/小时
答案
参考答案：D
搜题请搜索小程序“爱下问搜题”
这个路面标记是何含义？（）
A．最低限速为100公里/小时
B．平均速度为100公里/小时
C．解除100公里/小时限速
D．最高限速为100公里/小时
参考答案：D
Different from popular thoughts, sometimes flu(流感) is not caused by bad weather. It is caused by viruses（病毒）in the body. 56 , A/H1N1 flu has been spreading in the most parts in the world. Some studies have now shown that one of 57 ways of spreading the viruses is through the air when 58 A/H1N1 flu-sufferer coughs or sneezes. However, its viruses can sometimes spread by 59 . After a flu-sufferer rubs his nose, the viruses might be spread to his hand. Then a friend 60 to visit him, they shake their hands. The friend then get something 61 by hands, and several days 62 , he is infected. A child 63 is carrying A/H1N1 viruses uses tissues to clean his running nose, although his parents pick up the tissues and carefully throw 64 away, they fail to wash their hands, and they will catch the viruses, too. So it is important for you to wash your hands often, it will stop the viruses from 65 in a way.
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