对于互调问题,一个灵敏度非常高的接收机将有一个较好的性能。
参考答案:错
What kind of people were early colonial newspapers designed for a. Business people. b. Elite. c. Immigrants. d. People in the cities.
北大西洋暖流属于()
A.密度流
B.风海流
C.水平补偿
D.上升补偿流