下述哪一种疾病不属于脊柱关节病（）
A.炎性肠病性关节炎
B.强直性脊柱炎
C.类风湿关节炎
D.Reiter综合征
E.银屑病关节炎
参考答案：C
— I phoned you yesterday morning. A girl answered, but I didn’t recognize the voice.
— Oh, it ____ my younger sister. She was in my room at that moment.
A．must have been
B．should have been
C．could have been
D．may have been
Which is the second layer from the bottom in Open System Interconnection Reference Model?（）.
A.Application
B.Datalink
C.Network
D.Session
