"I'm glad ______ you here in the hotel."               "It's my great pleasure to have you ______ us."

A．meeting, to

B．to have met, with

C．having met, among

D．to meet, of

男，50岁，黑便、头晕，血压90mmHg/60mmHg，输悬浮红细胞后出现呼吸困难，胸闷，最可能的推断是（）。

A.过敏反应

B.输血后正常反应

C.急性溶血反应

D.急性肺损伤

E.急性肾损伤