分数加减法的验算方法与( )加减法的验算方法相同。
整数
Please don’t disturb Tom! He is busy now, with a lot of work ____.
A.done with
B.to do with
C.doing with
D.to be done with
中阳衰微,胃有寒湿者忌用的药物是
A.太子参
B.西洋参
C.益智仁
D.菟丝子
E.山药