第2题: [单项选择]心脏X线摄影是检查心脏病变的重要手段。 心脏右前斜位摄影,身体冠状面与胶片夹角为 A. 15°~20° B. 25°~35° C. 35°~40° D. 45°~55° E. 55°~65° 参考答案:D 答案解析:[解析] 心脏斜位摄影常规取右前斜位及左前斜位,其身体冠状面与胶片的夹角分别为45°~55°及55°~65°。心脏右前斜位身体冠状面与胶片呈45°~55°角,可使心脏投影在胸廓的前2/3处,清晰显示心
第22题: [单项选择]What does the woman want to do A. She wants to get off the bus. B. She wants to get on the bus. C. She wants the children to get on the bus one by one. 参考答案:C 答案解析:[解析] M: Here comes the bus. W: Don’ t rush (冲,催促), boys and girls. It’s dangerous (危险的).