在手术协议中要求病人本人或其家属签字，这是尊重病人的（）权利。
A.知情同意
B.人格尊重
C.医疗监督
D.平等医疗
参考答案：A
I just wonder ____ that makes him so excited.
A．why it does
B．what he does
C．how it is
D．what it is
