问题
单项选择题
左心房扩大的早期X线征象是（）
A.后前位右心下段双边或双房影
B.后前位左心缘第3弓突出
C.左前斜位左主支气管受压抬高
D.左前斜位心后缘向后下膨隆突出
E.右前斜位食管压迹加深
答案
参考答案：E
搜题请搜索小程序“爱下问搜题”
左心房扩大的早期X线征象是（）
A.后前位右心下段双边或双房影
B.后前位左心缘第3弓突出
C.左前斜位左主支气管受压抬高
D.左前斜位心后缘向后下膨隆突出
E.右前斜位食管压迹加深
参考答案：E
| 用所给动词的适当时态填空。 | |
2. We ________ a room next year, shan't we? 3. He became a teacher three years ago, and now he ________ well. 4. You ________ a student two years ago, right? 5. The teacher asked who ________ the book. 6. They ________ a meeting tomorrow, aren't they? 7. He ________ to his parents when I went to see him last night. |