急性胆囊炎、胆石症()。
A.上腹部钻顶样痛
B.上腹部刀割样痛伴腹肌紧张
C.右上腹绞痛
D.上腹部烧灼痛伴反酸
E.中上腹持续性剧痛,阵发性加剧
参考答案:C
After graduation I went to Somalia. When I first set foot on strange land, I didn't know what
the future had in store for me. [ ]
A. 不填; a
B. the; the
C. the; 不填
D. the; a
检查液的浑浊度时,当流量计上附有白色结晶物是因为()。
A、膜破损
B、滤液中含有碳酸铅
C、电泳慒液生菌
D、管路堵塞