[问答] 并讨论了这一方法与扫描法相比的优点。 A.s compared with the scanning method, the advantages of this method have also discussed． B.The advantages of this method over the scanning method have also been discussed． C.It has also been discussed the advantages of this method compared with the scanning method． D.Comparing this methowith the scanning method, the advantages of this methohave also discusse