下列病毒中不能引起持久性免疫的病毒是（）。
A.麻疹病毒
B.腮腺炎病毒
C.流行性乙型脑炎病毒
D.流感病毒
E.脊髓灰质炎病毒
参考答案：D
One thousand people died in the disaster, two hundred and fifty-five children ____.
A．were included
B．including
C．include
D．included
试论中国戏曲的三个主要来源。
