(A)1 (B)2 (C)3 (D)4
(A)2℃ (B)4℃ (C)6℃ (D)8℃
(A)10.3~15.7cm/h (B)16.8~21.4cm/h (C)24.3~30.1cm/h (D)30.5~45.7cm/h