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
It’s impossible for all the people to get jobs because _______of them are not fit for them.
A.none
B.all
C.not all
D.every one
霍尔姆斯