门静脉正常压力是()
A.30~50cmH2O
B.25~30cmH2O
C.13~24cmH2O
D.5~12cmH2O
E.3~4cmH2O
参考答案:C
The water___cool when I jumped into the pool for morning exercise。
A.was felt
B.felt
C.is felt
D.feels
国家的实质是管理公共事务的机关。( )