右冠状动脉瘘最常瘘入的腔室为（）。
A.右心房
B.左心房
C.左心室心尖部
D.右心室
E.肺动脉主干
参考答案：D
Which of the following statements is NOT true of comedy according to the passage
A．Present comedy is funnier than the past.
B．People’s conception on comedy remains unchanged for decades.
C．Contemporary comedy tends to be superficial.
D．Old comedy was considered thought-provoking.
