原发性免疫缺陷病的共同临床表现是
A．特殊面容B．反复感染C．生长发育明显落后D．不同程度智力低下E．易发生神经母细胞瘤
参考答案：B
Eric fell ill suddenly but was so foolish. He didn't even have ________ common sense to send for ______ doctor.
A．the; the
B．a; the
C．the; a
D．a; a
脑脓肿壁短T2低信号最可能是()
A.含铁血黄素沉着
B.胶原结构
C.血管影
D.钙化
E.铁沉积
