- Theprocessor'sratedspeedis252MHz.Thefrequencybandfrom6megahertz(MHz)to54megahertz(MHz),whichmaybeusedfortwo-waydatatransmission.Designofhighperformancehtsfilterat183MHzThelowbandinthisexemplaryembodimentisbelow1000MHzandthehighbandisabove1000MHz.New...
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- 問題詳情:廣東音樂臺發*電磁波的頻率是96.9MHz,肇慶音樂臺發*電磁波的頻率是90.9MHz.關於這兩種電磁波在空中傳播的波速和波長的關係,下列說法中正確的是()A.前者波速較大,波長較長B.前者波速較小,波長較短C.兩者波速和波長均相同D.兩者波速相同,前者波長較短【回答】D知識點:電磁波...
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