属于水杨酸反应的症状是下列,除外()
A.头痛
B.恶心呕吐
C.耳鸣
D.荨麻疹
E.听力减退
参考答案:D
Mr.White works in an import and export company,but he_____for this industrial
fair,since he is on leave.
A.has worked
B.works
C.has been working
D.is working
信息的发出者在传播过程中被称为()
A.受众
B.媒介
C.群众
D.传播者
E.听众