单项选择题 患者，女性，34岁，患乙肝3年余，下列乙肝病毒标记物检查结果中，提示病毒复制活跃的是 A.HBsAg(+)，HBeAg(－)，抗-HBc(+)B.HBsAg(+)，HBeAg(－)，抗-Hbe(+)C.HBsAg(+)，HBeAg(+)D.抗-HBc(+)E.抗-HBs(+)

问答题 （Fill in the blank）Write the express of Helmholtz Free energy. [填空1]

单项选择题 Cheryl has opening net assets of 78,500. During the year she introduced capital of 5,000 in drawings.  What is her profit for the year？