下列哪项是监测口服香豆素类抗凝药物最佳指标（）
A.PT
B.微电泳法
C.F1+2测定
D.加钙凝血酶法
E.发色底物法
参考答案：C
Although Jim had expected something special from Della, he was still surprised by _____ he saw.[ ]
A. what
B. which
C. that
D. How
Prince William got married to Kate _________ April 20ll and their wedding was held _________ Westminster Cathedral（教堂）.
A．on/in
B．in/in
C．on/on
D．in/on
