The airplane _____late, for we didn’t see the famous pop singer until 10 pm.

A．must be

B．will be

C．would have been

D．must have been

下列不符合再生障碍性贫血表现的是（）

A.发热、出血、贫血

B.一般无肝、脾和淋巴结肿大

C.全血细胞减少

D.骨髓增生低下

E.局部增生灶偶见巨核细胞增多