(A)5% (B)10% (C)15% (D)20%
(A)長(zhǎng)軸1000mm、短軸50mm (B)長(zhǎng)軸50mm、短軸1000mm (C)長(zhǎng)軸、短軸均50mm (D)長(zhǎng)軸、短軸均1000mm