(2013·浙江温州市二模)________ more tourists, travel agencies from both China and the DPRK have developed a package of new products.

A．Attracting

B．Attracted

C．To attract

D．Having attracted

中毒型菌痢的发病机理()

A．内毒素中毒

B．机体对内毒素过敏

C．体质异常

D．机体缺乏对内毒素的强烈反应

E．机体对外毒素过敏