室性阵发性心动过速的特点是()。
A.多无器质性心脏病
B.多不影响心功能
C.心电图无室性融合波
D.按压颈动脉窦能停止发作
E.心尖区第一心音强弱不等
参考答案:E
股票风险的资本要求包括特定风险和一般市场风险的资本要求两部分,其中特定风险的资本要求等于各不同市场中各类股票头寸绝对值之和乘以()后所得各项数值之和。
A.5%
B.6%
C.7%
D.8%
The risk to the exporter in open account trading is that by surrendering the shipping documents to the importer, he()before he has obtained payment for them.
A.is in control of the goods
B.loses control of the goods
C.retains control of the goods
D.gives up control of the goods