Afternoon tea was introduced in England by Anna, the 7th Duchess of Bedford, in the year 1840, _____ the evening meal was served fashionably late at 8 o’clock, thus _____ a long period of time between lunch and dinner.  

A．in her household… leaving

B．in whose household…leaving

C．in her household…left

D．in whose household…left

急性肾炎血液化验改变意义较大的是（）

A.红细胞沉降率增快

B.轻度贫血

C.白细胞增高

D.抗链球菌溶血素O增高（ASO）

E.血总补体和C₃下降