莫高窟的主要形制有禅定式、覆斗式、背屏式、涅槃窟等六大种类。其中源于印度的“支提”,窟平面呈矩形,意为塔庙形制的称为________。
题本

4.答辩题目
(1)Can you conclude the rule of sentence stress comprehensively?
(2) Are you satisfied with this presentation? Which do you think is the most difficult part?