CNN援引美国海军官员说法，此前在MH370搜寻中发现的4个声学ping信号不再被认为来自失踪客机黑匣子。
CCTVNEWS
#搜寻马航370#【CNN援引美海军说法：南印度洋ping信号并非来自MH370黑匣子】The 4 acoustic pings at the center of the search for Malaysia Airlines Flight 370 for the past 7 weeks are no longer believed to have come from the plane's black box, CNN reported citing a US navy official.
