只有自信的人，才不会有挫折。[ ]
×
I haven't got a raincoat. I'll have to buy __________.[ ]
A. each
B. some
C. any
D. one
门静脉正常压力为（）
A．2～5cmH2O
B．6～12cmH2O
C．13～24cmH2O
D．25～40cmH2O
E．41～60cmH2O
