三尖瓣下移畸形的超声所见是（）
A.右心房巨大（右房加房化右室）
B.功能右室正常
C.三尖瓣下移<1cm
D.三尖瓣前瓣变小
E.右心肥厚
参考答案：A
We ________ the job ________ five parts, and each man did one part.[ ]
A. divided; into
B. separated; into
C. divided; from
D. separated; from
HCA
