He _______ more visits to his parents.He has been regretting not doing so since they passed away.

A．should pay

B．would pay

C．should have paid

D．would have paid

患者女性，40岁。低热、盗汗、腹胀1个月就诊。查体：全腹轻压痛，肝脾未及，移动性浊音(+)，腹水为黄色渗出液，腺苷脱氨酶(ADA)80U。

以下哪项腹水检查结果不支持该诊断

A．比重＜1.018
B．蛋白质含量＞30g/L
C．细胞计数超过500×10⁶/L
D．细胞以淋巴细胞为主
E．李凡他试验阳性