下图表示某遗传病的系谱图，请据图回答。
若该病是常染色体显性遗传病，则Ⅱ4与Ⅱ5再生育一个正常女儿的概率为（）
参考答案：1/4
正确完成下面的句子。
1. I __________ (talk) to many store clerks yesterday.
2. I __________ (not have) nice trip last Friday.
3. — What __________ you __________ (do) now?
— I __________ (play) checkers.
— What __________ you __________ (do) just now (刚才)?
— I __________ (go) to Wangfujing Street and __________ (buy) a gift for my father.
男，22岁，感胸痛且大汗淋漓就诊，X线检查如图，最可能的诊断是()
A．正常胸片
B．左肺肿瘤
C．左侧肺气肿
D．左侧气胸
E．支气管囊肿
