胆总管结石梗阻,表现出的症状包括()。
A.发热
B.黄疸
C.上腹饱胀
D.胆囊肿大
E.上腹绞痛
参考答案:A, B, D, E
Thank you for all your hard work last week. I don’t think we ______ it without you.
A.could have managed
B.can manage
C.could manage
D.can have managed