A-A+
______can be seen from the comparison of these
问题详情
______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
正确答案:A
解析:定语从句。as引导非限制性定语从句可以放在主句之前,指代主句的内容,而which只能放在主句之后,故答案为A。