题目内容
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[判断题]
The GPS phone displays several hollow bars after switched on, which indicates it has l
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A.以上所指的软件都是系统软件
B.以上所指的软件都是应用软件
C.GPS导航系统是系统软件
D.智能手机使用QQ软件前,必须先安装手机操作系统
______ you as soon as I know what.
A.I'll phone, does happen
B.I'll phone, has happened
C.I am phoning ,happens
D.I am going to phone... happens