能确诊病毒性心肌炎急性期的检查是:()
A.超声心动检查
B.血清检查
C.心电图检查
D.心肌放射性核酸显像法
E.以上都不是
参考答案:E
A.Because they can help set good role models.
B.Because they can stop white-collar crime.
C.Because they can reduce crime.
D.Because they can make criminals feel fair.
按设置地点不同,航标可分为()。
A.沿海航标、内河航标、船闸航标
B.灯塔、灯桩、立标
C.灯船、灯浮、浮标
D.发光航标、不发光航标、音响航标、无线电航标