产后腹痛发病机制是()
A.气血运行不畅
B.失血伤津,筋脉失养
C.冲任失固,气血运行失常
D.阴血骤虚,阳易浮散,腠理不实,营卫不固
E.营阴下夺,气随血脱
参考答案:A
向港口垃圾接受设施排放垃圾时,船长需从接受垃圾管理人员处得到一份写明垃圾转移量的收据或证明,并将其在船上保存()。
A.半年
B.1年
C.2年
D.3年
271. Wait for me for a few more minutes. I am _____ to a letter from one of my former classmates at college and will finish writing very soon.
A.replying
B.answering to
C.replying to
D.answering for