某男童食用从农贸市场购买的火腿肠后，出现口唇、指甲以及全身皮肤青紫等组织缺氧症状，送

单词拼写。

1. Foods, such as rice, sugar, butter, oils and so on can give us e___________.

2. Children's _________ (好奇心) with everything plays an important part in their study.

3. It may take a few weeks for you to build up your _________(体力) again.

4. The ______________(起源) of some words are unknown.

5. Millions of people in Africa are still _____________(挨饿) to death at present.

6. I don't mind a_________ to others if I make a mistake.

7. D_________ is the sweet food served after the main course of a meal.

8. I had thought it was a terrible film. On the _________ (正相反), it was exciting.

9. Her excuse for being late was totally _________ (难以置信的).

10. The explorer told the boys about his _________ (冒险)in the Arctic

男性，42岁，近2个月有脓血便。腹部体检未及阳性体征。直肠指诊可及一肿物下缘，质较硬，指套带血。

最可能的疾病为

A．直肠内脱垂

B．内痔

C．直肠癌

D．溃疡性结肠炎

E．粪块梗阻

男性，25岁，2天前不明原因地出现干咳、胸闷，继之气喘，静滴氨茶碱无效。近3年来，秋季常出现发作性咳嗽、气短。体检：端坐呼吸，发绀，双肺呼吸音降低，有散在哮鸣音，心界不大，无杂音，脉搏120次/min，有奇脉。

最适宜的治疗是（）

A.免疫治疗

B.抗生素治疗

C.利尿剂治疗

D.抗凝治疗

E.β受体激动剂治疗

蓄电池放电过程中，负极板上的铅与电解液中的（）生成硫酸铅。

A.水

B.硫酸根

C.硫

D.氢