射频识别的硬件系统由发射天线、()、无线调谐器、()、识读器
参考答案:接收天线; 电子标签
根据短文内容,判断正(T)误(F)。
Tom works in a supermarket. The supermarket is far from his house. He
gets up very early in the morning. He usually has breakfast at half past six and
takes a bus to work. He has lunch in the supermarket. He has supper with his
family at home. After supper he usually walks along(沿着) the river with his
wife. At seven he watches TV or listen to the music .
Tom likes his work very much. He is always kind to others. And all his
friends love him, too. They work happily.
( ) 1. Tom is a worker in a supermarket .
( ) 2.Tom's house isn't far from the supermarket .
( ) 3. He doesn't have lunch with his family .
( ) 4. He is a good worker.
( ) 5. Few of his friends like him.
下列属于室内试验的有()。
A.颗粒分析试验
B.击实试验
C.固结试验
D.静力触探试验