申请设备报废必须符合（）个条件中的其中一个。
A、三个
B、四个
C、五个
参考答案：C
在给滤芯建立滤饼时要注意哪些？
This pop star is very _____ with young people, who like his songs and style. [ ]
A. familiar
B. similar
C. particular
D. popular
