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问题 单项选择题

男，36岁，早年有风湿性关节炎病史，劳累性呼吸困难1年，近两周出现声音嘶哑。其原因可能为（）。

A.左房及肺动脉扩大

B.左房及肺静脉扩大

C.右房及左房扩大

D.右房及肺静脉扩大

E.右房及右室扩大

答案

参考答案：A

填空题

单词拼写。

1. It's hot today. Let's go swimming in the s_________.

2. —I'm a teacher, what's your j_______? —I'm a reporter.

3. My grandfather has two sons. One is my father, the other one is my u______.

4. The teacher said that the m________ goes around the earth.

5. This place is so beautiful that many artists often come here to d______ pictures.

6. —Would you like some more noodles? —No, thanks. I am ________(饱的).

7. It is __________(礼貌的) to wait in line.

8. Mother said to her little daughter, "You are old enough to look after_________(你自己)."

9. As a student, you shouldn't __________(抄袭) other's homework.

10. My teacher often told me to pay ________(注意) to my spelling while I was writing.

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单项选择题

优化开发区域是指( )。

A．国土开发密度高，资源环境承载能力弱的区域

B．国土开发密度不高，资源环境承载能力不弱的区域

C．国土开发密度已经较高，资源环境承载能力开始减弱的区域

D．国土开发密度已经减弱，资源环境承载能力开始加强的区域
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