下列地区中属于我国人口的密集分布地区的是[ ]
A．湿润平坦的长江中下游平原
B．干旱的塔里木盆地
C．阳光充裕的青藏高原
D．山高谷深的横断山区
答案：A
用合适的介词填空。
1. The teacher is talking _____ my mother.
2. We walked _____ Chang'an Park yesterday.
3. My mother went to Shanghai yesterday. Now she is arriving home ______ Shanghai.
4. I like dogs. So my father wants to buy dog ______ me.
5. I looked ______ many video shops. At last, I found the CD.
大水泡音见于下列疾病中的（）
A.肺梗死
B.支气管扩张症
C.支气管肺炎
D.支气管哮喘
E.肺泡炎
