All of the following are characteristics of a well functioning securities market EXCEPT:（）

A. Internal information efficiency which can lead to variable transaction costs.

B. It would provide liquidity (marketability, price continuity, and depth).

C. It would provide internal and external efficiency.

吊装责任保险的保险责任是（）

A.吊装货物的损失

B.除吊装货物外的第三者其他财产损失或人身伤亡

C.自然灾害

D.战争、敌对行动、军事行为、武装冲突、罢工、骚乱、暴动、恐怖活动