Which of the following statements is NOT true of the passage

A．International trade has become an important part of national development.

B．Summit talks will be held to discuss problems in international trade.

C．Developing countries benefit more from international trade than development aid.

D．The Doha Development Agenda has made development its pivotal concern.

风湿性心内膜炎的描述哪项正确

A．瓣膜赘生物粘连牢固

B．瓣膜赘生物中早期有细菌

C．受累瓣膜以三尖瓣多见

D．受累瓣膜以三尖瓣及肺动脉瓣多见

E．赘生物易脱落