目的：对高中生的自我中心状况进行初步调查。
Objective: To understand the state of ego-centrism of adolescents.
不过进行初步调查的全部职员加起来只有屈指可数的几个人。
But the total number of staff involved in those initial probes is a bare handful.
这些病例包括父母及其三个年轻女儿，在初步试验表明感染禽流感H5亚型之后正在进行进一步调查。
These cases, which include the parents and their three young daughters, are undergoing further investigation following initial tests indicating infection with the H5 subtype of avian influenza.
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