My grandparents like to live in the countryside where they can enjoy ______ leisurely walk on the country road and feel ______ warmth of the sun on their faces.

A．the; ﹨

B．a; the

C．the; a

D．a; ﹨

女性患者，56岁，右上腹隐痛1个月，低热，无盗汗。查体：肝大肋下3cm，质韧，轻压痛，脾未触及。超声示：肝右叶实质性暗区，大小约3cm×4cm。为明确诊断哪项检查意义最大

A．肿瘤标志物
B．超声引导下肝穿刺活检
C．铁蛋白检测
D．乳酸脱氢酶
E．肝功能检测