题目

Steve Jobs，Apple's chief executive，made his first public appearance since going on medical leave six weeks ago，taking the stage at a San Francisco media event to introduce the iPad 2, the second generation of the company's tablet computer. Thin but energetic, Mr Jobs showed off a thinner iPad.“We've been working on this product for a while and I just didn't want to miss this day，” he said. His absence has concerned investors, especially since the group has given no details of his condition.He was diagnosed (确诊) with cancer in 2004 and had a liver transplant (肝脏移敦促日本在1945年8月15日宣布投降的原因不包括 [　　] A．中国抗日力量向日、伪军展开全面规模的反攻 B．苏联对日宣战，对中国东北的日本关东军发起进攻 C．美国在日本广岛、长崎投下两颗原子弹 D．意大利宣布投降，法西斯同盟开始瓦解