鉴别阿米巴肝脓肿和细菌性肝脓肿最重要的指标是
A.起病缓急B.毒血症状轻重C.脓肿的个数和大小D.脓液的颜色E.局部症状的轻重
参考答案:D
He just graduated from the university last month, so he_________ working experience.
A.lacks of
B.lacks
C.is lacking of
D.lacking in
CDMA移动通信的主要特点是什么?