脑的血流量占心输出量的（）
A.2%
B.10%
C.15%
D.20%
E.30%
参考答案：C
—Look, I've got admission to Harvard University for a shortterm study next semester.
—How fantastic! You ________ a different university life then.
A．have experienced
B．will be experiencing
C．have been experiencing
D．will have experienced
