社会工作者小陶打算利用地区发展模式在一个新建小区开展社区工作。小陶在接触居民时，了解

某公司为了转换经营范围，对所有商品实行优惠打折销售，该公司这种行为是( )。

A．正当销售行为

B．排挤其他经营者行为

C．不正当促销行为

D．不正当竞争行为

链环直径磨损达原直径的()时，应报废。

A．5%

B．7%

C．8%

D．10%

三腔二囊管的并发症为（）

A.吸入性肺炎

B.食管破裂

C.窒息

D.感染

E.肝性脑病

病人狂躁妄动，胡言乱语，打人毁物，不避亲疏，属于（）

A.狂病

B.癫病

C.痫病

D.惊风

E.脏躁

The Internet is a (66) network of networks which interconnects (67) ranging from the simplest personal computers to the most sophisticated mainframes and supercomputers. This network of networks is used for an extraordinary range of purposes - long distance collaborations, retrieving free software and documents, (68) library catalogs, (69) in t6 supercomputers - the list of current Internet activities and (70) is large and the range of possible future applications is as unlimited as our imagination.

A．logging

B．going

C．coming

D．achieving