如圖所示,LNK/ACT(綠色)表示()
A.常亮,以太網(wǎng)電口鏈路正常; B.不亮,以太網(wǎng)電口鏈路正常; C.閃爍,以太網(wǎng)電口鏈路無(wú)數(shù)據(jù)收發(fā).