患儿3岁，近一年多哭甚时出现青紫。查体：心前区隆起，胸骨左缘第3～4肋间可闻及Ⅳ级收缩期杂音，可触及震颤。X线检查示：左、右心室及左房增大，肺血管影增多，肺动脉段凸出。此患儿最可能的诊断是()

A．房间隔缺损

B．室间隔缺损

C．肺动脉狭窄

D．动脉导管未闭

The thought _______ he would open a Sichuan restaurant in Los Angeles surprised his wife.

A．that

B．what　

C．whether

D．when