世界上最多的无脊椎动物是[ ]
A.昆虫
B.蜘蛛
C.鸟类
D.环节动物
答案:A
【18】 记录着每个文件的文件名、起始簇号、属性等信息,它与文件分配表FAT相配合,统一管理整个磁盘的文件。
8、When and where to go for the on-salary holiday ______ yet.
A.are not decided
B.have not been decided
C.is not being decided
D.has not been decided