具有温脾开胃摄唾,暖肾固精缩尿作用的药物是()
A.山药
B.补骨脂
C.菟丝子
D.杜仲
E.益智
参考答案:E
新生儿脐血中哪类Ig水平增高表示有宫内感染()
A.IgM
B.IgA
C.SIgA
D.IgE
E.IgG
She often goes shopping _____ Sunday morning.[ ]
A. in
B. on
C. with
D. at