题目

—Could you tell me________？ I must prepare for it. —Well，it will start at 9∶00 tomorrow morning. There is enough time for you. A. why will the speech start  B. when the speech will start  C. where the speech will start 答案：B下列长度的三条线段能组成三角形的是（　　）A．2、3、5B．5、15、8C．10、16、8D．3、6、9