对慢性癌痛患者止痛首选的给药途径是（）。
A.静脉输注
B.口服
C.直肠给药
D.肌注或皮下注射
E.透皮贴剂
参考答案：B
The solider had qualified as a doctor, but later he gave up the _______of medicine for full-time training.[ ]
A. fight
B. treatment
C. practice
D. design
银承到期足额扣款时，系统自动修改登记簿的状态为（）。
A、已兑付
B、待兑付
C、正常
D、销户
