慢性龈炎引起牙龈炎性肿胀的原因应除外（） A.引起牙龈增生的药物 B.错 C.不良修

首字母填空 （本大题共5分，每空0.5分）

根据对话内容和所给首字母，在空格内填入一个适当的单词，使对话意思完整。 

Dear Lily,

I’m happy to get your letter. I r 小题1: it after school today. Now let me tell you a小题2:    me. I like swimming. I swim every day in s小题3: . You know summer in England is very hot. I also like reading. I read different k小题4: of books. I read two o小题5:  three books a week. I like w小题6: , too. I want to be a writer(作家) in the future(将来)

I also like playing w小题7: my dog, Mickey. He is big and needs a lot of exercise. So at weekends we often go for a long w小题8: near my house. Mickey likes jumping into water. He is a good swimmer.

Well, these are my h小题9: . Please write and tell me about y小题10:  .

All the best

Amy

以下是几个常见实验的注意事项：

①在试管中加热胆矾，试管口要略低于试管底部

②铁丝在氧气中燃烧，集气瓶中要预先放入少量水

③氯酸钾制氧气实验完毕，先将导管移出水槽再停止加热，

它们的目的都是为了防止（　　）

A．水倒流

B．温度过高

C．容器破裂

D．反应过慢

前列腺癌的血清标志物不包括（）

A.CPSA

B.CEA

C.PSA

D.前列腺酸性磷酸酶

E.fPSA

皮质型感觉障碍的特点是()

A．病变对侧单肢感觉障碍

B．感觉障碍多呈手套袜套状分布

C．皮质感觉中枢受刺激可出现感觉性癫痫发作

D．病变对侧半身自发性疼痛

E．可出现实体觉及两点辨别觉障碍

高级程序设计语言编写的程序不能在计算机上直接执行，必须通过　【 】　翻译成具体的机器语言后才能执行。