单项选择题
A.96B.144C.192D.240
A.68dp;8dpB.88dp;8dpC.64dp;8dpD.48dp;8dp
A.1dp=1spB.1dp=2spC.1dp=3spD.1dp=4sp
A.256ppiB.640ppiC.480ppiD.320ppi
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