第33题: [单项选择]____________can be seen from the comparison of these figures, the principle involves the active participation of the patient in the modification of his condition. A. As B. What C. That D. It 参考答案:A 答案解析:as引导的非限制性定语从句,通常修饰整个主句或主句的部分内容。相同的句子有, As is shown in the table,the U.S.A.is the major copper-produc