天线的损耗包括其结构内的欧姆损耗和天线与传输线失配产生反射而引起的损耗。
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若天线与传输线失配，则线上不存在反射系数。
A. 对
B. 错
able to be trusted or depended on可信赖的；可靠的
A. reliable
B. numerous
C. consistent
D. marginal
Willing to work very hard at sth.坚定的；尽心尽力的
A. intensive
B. committed
C. controversial
D. conventional
have a bad effect on sth. or sb. over a long period of time (对……产生不利影响）
A. interfere with
B. cut corners
C. takea toll on
D. cut back on
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