题目

Dad has changed a lot over twenty years. Mum, ______, looks almost the same. A . despite B . though C . although D . while 答案：B（2011?普定县模拟）一个圆柱形油桶底面内直径40厘米，高50厘米，如果每立方分米柴油重0.85千克，这个油桶可装柴油多少千克？