Tens of thousands of civilians have fled the area. The former security chief of Pakistan's tribal regions, Mahmood Shah, tells VOA the recent attacks, including Saturday's audacious assault, show the militants are united and may want to antagonize the international community.

VOA: standard.2009.10.12

They can antagonize that reaction, and a result they affect blood rate.

受体阻断剂能够阻断这类作用,进而影响血液流速

耶鲁公开课 - 生物医学工程探索课程节选

They can antagonize that reaction, and a result they affect blood rate.

受体阻断剂能够阻断这类作用,进而影响血液流速

耶鲁公开课 - 生物医学工程探索课程节选