-3-6+9-11+2.
-3-6+9-11+2=0-11+2=-9.
-My family and I stayed at home watching TV this weekend. It's relaxing.
-______. But I think it's boring. [ ]
A. So we did
B. So did we
C. I agree with you
D. I like it
女性,58岁。反复右上腹疼痛,发热伴尿黄3年,昨日又出现右上腹绞痛、发热、黄疸而来就诊,下列哪项体征对诊断最有意义().
A.Murphy征阳性
B.季肋点压痛阳性
C.Courvoisier征阳性
D.肝脏肿大
E.腹部移动性浊音阳性