level后的定语从句用什么引导

program 是个名词，后跟从句可能是定语从句，也可能是同位语从句，定语从句可以用 which或 that 引导，同位语从句就用that引导。 eg. This is the program that /which is intended for the poor. 定从 The program that they focus on helping the poor is under discussion. 同位语从句