上市证券又称挂牌证券，是指经证券主管机关核准，在证券交易所注_爱下问搜题

搜题请搜索小程序“爱下问搜题”

问题判断题

上市证券又称挂牌证券，是指经证券主管机关核准，在证券交易所注册登记，获得在交易所内买卖资格的证券。 ( )　

答案

参考答案：对

单项选择题

Questions 14 to 16 are based on a news report about retirement. You now have 15 seconds to read questions 14 to 16.

Which factor would NOT be considered when you choose better residence

A．On-staff nurses.

B．Visiting practitioners.

C．Medication reminders.

D．Supportive seniors.

填空题

锐角△ABC中，a、b、c是角A、B、C所对的边，(a2+c2-b2)•tanB=

ac，则B=______．