單項選擇題
A.10mmB.20mmC.30mmD.60mm
A.30°B.45°C.60°D.90°
A.400B.300C.200D.100
A.1mmB.2mmC.3mmD.5mm
A.7%B.8%C.10%D.12%
A.≤5B.≤10C.≤15D.≤20
A.4B.8C.12D.24
A.0.2B.0.5C.1D.10
A.魚鱗云杉B.馬尾松C.水曲柳D.樺木
A.形狀B.樹種C.厚度D.顏色
A.5~10B.5~20C.10D.15~20