A.隨體 B.長(zhǎng)臂和段臂 C.主溢痕和次溢痕 D.著絲點(diǎn)
A.10-15 B.15-30 C.15-40 D.15-50
A.(AXB)(CXD) B.A(BXC)D C.AX(BXC)D D.(AXBXC)D