开发行可转换债券的上市公司最近3个会计年度加权平均净资产收益率平均不得低于()。
A.2%
B.4%
C.6%
D.8%
参考答案:C
People always __________ dogs as their best friends.
A.make
B.work
C.watch
D.regard
正常的中心静脉压为
A.0.2~0.5kPa(2~5cmH2O)B.0.6~1.2kPa(6~12cmH2O)C.1.3~2.4kPa(13~24cmH2O)D.2.5~3.9kpa(25~40cmH2O)E.4.0~5kPa(41~60cmH2O)