男性，48岁，心慌气短、双下肢水肿1年余。体格检查可见心脏向两侧扩大，心尖区可闻及奔马律，心肌核素检查可见舒张末期和收缩末期左心室容积增大，左心室射血分数降低，且核素心肌显像显示左心室壁呈灶性散在性放射性减低区。最可能的诊断是（）
A.心包积液
B.病毒性心肌炎
C.扩张型心肌病
D.风湿性心脏病
E.冠状动脉粥样硬化性心脏病
参考答案：C
解析：扩张型心肌病的病理特征是心肌核素检查有舒张末期和收缩末期左心室容积增大，左心室射血分数降低，且核素心肌显像有左心室壁呈灶性散在性放射性减低区。
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| On Thursday afternoon Mrs Clarke locked the door and went to the women's club as usual.It was a pleasant way of __1__ time for an old woman who lived alone. When she came home she __2__ something unusual.Had someone got in?The back door and the windows were all locked and there was no __3__ of forced entry.Had anything been taken?She went from room to room, __4__, and found her camera and spare watch missing. The following Thursday she went out at her __5__ time, but didn't go to the club.Instead, she took a short walk in a park nearby and came home, letting herself in through the __6__ door.She settled down to wait and see what would happen. It was 4 o'clock when the front doorbell rang.Mrs Clarke was __7__ tea at the time.The bell rang again, and the next moment she __8__ her letterbox being pushed open.Picking up the kettle of boiling water, she moved quietly towards the letterbox.A piece of __9__ appeared through the letterbox, and then a hand.The wire turned and caught around the knob(原形旋钮)on the doorlock.Mrs Clarke __10__ the kettle and poured the water over the hand.A __11__ cry was heard outside as the wire __12__ to the floor and the hand was pulled back, which was followed by the sound of __13__ feet. It wasn't long before the police caught the thief.And Mrs Clarke was greatly __14__ at the club for her successful __15__. | ||||
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