______ can be seen from the comparison of these figures, the principle involves

游客2023-10-25  21

问题 ______ can be seen from the comparison of these figures, the principle involves the active participation of the patient in the modification of his condition.

选项 A、What
B、That
C、As
D、It

答案 C

解析 as引导非限制性定语从句,指代整个句子或主句的部分内容。故C正确。
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