胸部高分辨力扫描的骨窗应为()
A.W300-350HU, C30-50HU
B.W500-1000HU, C30-50HU
C.W1000-2000HU, C30-50HU
D.W1000-2000HU, C300-500HU
E.W1000-2000HU, C600-800HU