问题
问答题 简答题
雷达发射的电波是靠什么作为反射回波的?
答案
参考答案:
靠云、雨、雪和冰雹等降水质点群作为反射回波的。
雷达发射的电波是靠什么作为反射回波的?
参考答案:
靠云、雨、雪和冰雹等降水质点群作为反射回波的。
Do you know Weibo? Do you write a Weibo? If you don’t, 小题1: Weibo means microblog. People may spend much time writing a microblog, but it takes a little time to write a microblog. Why? 小题2: Microblog started in the USA. It came to China in 2009 and it has developed very fast. In 2011, the number of Chinese, micro-bloggers grew to 300 million.小题3:For many microblog user, it is a great way of learning the freshest news, talking with friends and sharing different kinds of information, including news, daily life, pictures, music and so on. Many stars and famous people also write microblogs and share good things with their fans. It is easy and fast to send a message on a microblog. 小题4: For example, when the big earthquake and tsunami(海啸)hit Japan in March, 2011, messages like “Salt can protect people from radiation (辐射)” were hot on microblogs. 小题5: Later people realized it was just a rumor(谣言). In a word, microblog plays a new role in the life of Chinese people.
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