大众传播的常见障碍
A.受众的心理障碍
B.传播信息中符号的转化障碍
C.人为干扰和机械障碍
D.语言障碍
E.性别障碍
参考答案:A,B,C,D
An analyst does research about market efficiency. Which of the followings is most likely used to test the semi-p form efficient market hypothesis()
A. Event studies.
B. Serial correlation in security return.
C. Trading on nonpublic information.
(1~3题共用题干)有一名53岁男性患者,入院前3小时突然头痛呕吐,CT检查后入院,入院检查意识清,痛苦病容,四肢肌张力肌力改变不明显,项强(-),头CT左侧裂池有高密度影像。
最根本治疗方案是
A.冬眠物理降温
B.脱水治疗
C.止血治疗
D.绝对卧床休息
E.动脉瘤夹闭术