【正确答案】 C

【答案解析】[听力原文]
   At least 14 people were killed Wednesday when a bomb tore through a polio vaccination center in southwestern Pakistan. The New York Times reported that 13 of the dead were police officers at the site in Quetta. Authorities said 23 people were wounded. Area doctors told reporters that five of the wounded are in critical condition. The police officers guard the health workers at the clinic. The health staff are often targeted by Islamist militants in Pakistan, according to the New York Times.
   A spokesperson for the Pakistani Taliban claimed responsibility for the suicide bombing in a statement to reporters. The Pakistani Taliban is an extremist alliance of militant organizations. They are waging an insurgency against the state of Pakistan. The alliance is responsible for killing thousands of Pakistanis in recent years.
   What do we learn about the suicide bombing from the news report?
主旨大意题。新闻开头便指出周三一颗炸弹炸毁了巴基斯坦西南部脊髓灰质炎疫苗接种中心，造成至少14人死亡。故答案为C。