用两种不同材料分别制成的体积相同的实心小球甲和乙，在天平的左盘中放2个甲球，在右盘中放3个乙球，天平正好平衡，则[ ]

A．甲球密度等于乙球密度

B．甲球密度等于乙球密度的3/2倍

C．甲球质量等于乙球质量的2/3倍

D．乙球密度等于甲球密度的3/2倍

The living room is clean and tidy, with a dining table already _____ for a meal to be cooked.

A．reserved

B．swept

C．decorated

D．laid