脾胃虚寒型呕吐，呕吐清水不止的最佳治疗方剂是
A．小半夏加茯苓汤B．理中汤加吴茱萸C．香砂六君子汤D．旋复代赭汤E．以上均不是
参考答案：B
进行体内药物分析血样采集时用（）
A.1ml
B.1~2ml
C.1~3ml
D.2ml
E.3ml
This selection leads one to believe that the Earth ______.
A．never gets hit by meteors
B．always gets hit by meteors
C．was hit by meteors some time in the past
D．may be bombarded by meteors in the near future
