A:各抱地势,钩心斗角隔离天日矗不知其几千万落
B:韩魏之经营燕赵之收藏齐楚之精英
C:一宫之间,而气候不齐可怜焦土
D:秦人不暇自哀六王毕,四海一则足以拒秦
Remember that ______ is better than cure, so brush your teeth at least twice a day and visit your dentist for regular check-ups.
制作临时装片时,须让盖玻片的一侧先接触水滴,然后再轻轻地盖上,其主要目的是( )
9216÷72=( )