与急性心包炎相鉴别,诊断急性心肌梗死的依据是()。
A.心电图ST段弓背向下压低
B.心电图ST段弓背向上抬高
C.无异常Q波
D.有心包摩擦音
E.持久的心前区疼痛
参考答案:B
—What's the matter Mr. Liu? He is wet through.
—His car ran the river, for he drove his car after drinking lots of beer. [ ]
A. with; into
B. for in
C. with; to
D. to ; at
法人投资者和自然人投资者从事股指期货交易业务,应当根据自身的经营管理特点和业务运作状况,建立健全内部控制和风险管理制度,对自身的内部控制和风险管理能力进行客观评估,审慎决定是否参与股指期货交易。( )