雄激素最适合治疗
A．缺铁性贫血
B．海洋性贫血
C．慢性感染性贫血
D．铁粒幼红细胞贫血
E．再生障碍性贫血
参考答案：E
—Whose guitar is this?
—It _ _ Alice. Only she can play the guitar in our class. [ ]
A. must be
B. must belong to
C. can belong
建立BGP连接所采用的端口号是（）
A.21
B.53
C.22
D.179
