文章列表

• 1.英语听力：自然百科 揭密联邦调查局 Unit7
• Despite the risk, Spence allows the FBI to rig a video camera in the dashboard of his truck. Here, the hidden camera records one of the suspects descr...
• 2.英语听力：自然百科 揭密联邦调查局 Unit6
• How does the bureau use informants to bring dangerous criminals to justice? They have several top-secret strategies which we are about to reveal. FBI ...
• 3.英语听力：自然百科 揭密联邦调查局 Unit5
• If threw these nails out into the crowd, extremely deadly shrapnel. Once the FBI knows what materials were used to build the bomb and how it was conce...
• 4.英语听力：自然百科 揭密联邦调查局 Unit4
• Unlike the fertilizer bomb used in Oklahoma City, device analysis reveals that the New Jersey bomb is made from common household items. The problem is...
• 5.英语听力：自然百科 揭密联邦调查局 Unit3
• Atlanta, Georgia, a terrorist bomb explodes in Centennial Olympic Park, killing one woman and injuring hundreds. North Caldwell, New Jersey, an advert...
• 6.英语听力：自然百科 揭密联邦调查局 Unit2
• Atlanta, Georgia, a terrorist bomb explodes in Centennial Olympic Park, killing one woman and injuring hundreds. North Caldwell, New Jersey, an advert...
• 7.英语听力：自然百科 揭密联邦调查局 Unit1
• Tonight on Best Kept Secrets, we go inside one of the world's most secretive crime-fighting organizations, the Federal Bureau of Investigation. How do...
• 8.英语听力：自然百科 人类血型的秘密
• Kasey on Why Tell me Why. Someone asked why veins are blue and blood is red. So that's part of this question: why do we have different blood types? Bl...
• 9.英语听力：自然百科 The.First.Emperor 秦始皇 Part8
• Inside his own court, unseen enemies want to destroy him. The official history records Ying Zheng's coming of age at twenty years old as the defining ...
• 10.英语听力：自然百科 The.First.Emperor 秦始皇 Part7
• Only the metal parts have survived. But they are the finest quality bronze weapons found anywhere in the world. One of the most incredible finds is a ...