—Is it ________ one on the chair near the door?
锦上____花 花好____圆 花团____簇
姹紫____红 国色天____ 含____待放
In a____(health)diet, there are a lot of vegetables and fruit.
俗话说：“人要实，火要虚”。这其中所蕴含的化学道理是（）
