心脏右前斜位片主要观察()
A.左心房、肺动脉主干和右心室漏斗部
B.左心室、主动脉弓的全貌
C.右心房、主动脉
D.气管分叉
E.以上全不是
参考答案:A
Look at the timetable. Hurry up! Flight 9013 to Changsha off at 7:30.
A.took
B.takes
C.will be taken
D.has taken
EOG对哪种疾病诊断最有价值( )
A.视网膜脱离B.Best病C.视神经炎D.色盲E.视网膜静脉阻塞