单项选择题
People here usually（）each other by their first names instead of family names.
A.callB.workC.hear
单项选择题 Hello, I'm David Chen. Nice to meet you.().A. Are you?B. Nice to meet you, too.C. Very nice.
单项选择题 申请设立股份有限公司，应当向公司登记机关提交下列什么文件。
单项选择题 椎体血管瘤,病变首选的影像学检查方法是
