出血坏死型胰腺炎时的Cullen征是指( )
A.脐周皮肤红斑
B.脐周皮肤青紫
C.胁腹皮肤青紫
D.脐周皮肤呈灰紫斑色
E.胁腹皮肤呈灰紫斑色
参考答案:B
What happened to him after the World Tennis Tournament().
A.He became famous.
B.He joined the airlines industry.
C.He had habitual headaches.
D.He became a hair stylist.
在中美关系的发展中,台湾问题是一大障碍,在扫除这一障碍的过程中,取得突破性进展的事件包括( )
①中国恢复联合国席位 ②尼克松总统访华
③中美两国正式建交 ④邓 * * 访问美国
A.①②
B.①③
C.②③
D.③④