單項(xiàng)選擇題
A.2倍B.3倍C.4倍D.5倍
A.15mm B.20mm C.25mm D.30mm
A.15mm B.20mm C.25mm D.35mm
A.15mm B.20mm C.25mm D.50mm
A.5℃;-3℃ B.10℃;-4℃ C.5℃;-5℃ D.5℃;-10℃
A.2 B.3 C.4 D.5
A.7d B.14d C.28d D.60d
A.5m B.10m C.15m D.20m
A.1倍 B.2倍 C.3倍 D.4倍
A.1.4 B.1.1 C.1.2 D.1.3
A.1/4;20mm B.1/4;25mm C.1/3;25mm D.1/3;30mm