转移性腹膜后间隙肿瘤主要沿腹膜后淋巴系统途径扩散。不同原发灶的优势扩散途径及趋势不同，如：

胰腺癌和胃癌最容易扩散至

A．肾门、主动脉旁淋巴结组
B．门腔间隙、腹腔千周围淋巴结及所在脏器周围淋巴结组
C．肠系膜根部淋巴结
D．髂区、骶前淋巴结组
E．下腔静脉、腹主动脉周围淋巴结

用所给单词的适当形式填空.

1. Computers are _____ (use) inventions and becoming more popular.

2. Could you tell me where I can _____ (change) money.

3. You may take the elevator to the      _  (two) floor. She is in the office there.

4. Maybe there's someone_____ (call) you just outside your office.

5. The article is very _____ (organize), and it's worth read ing.