My friend Henry was born        the morning of June 10, 1997.

A．in

B．on

C．at

D．for

男性，28岁，头晕乏力一年半，皮肤散在出血点，血象Hb65g/L，RBC 2×10 12/L，WBC 1.8×109/L，白细胞分类，淋巴细胞80％，中性20％，骨髓增生低下，诊断

A．骨髓纤维化

B．慢性再障

C．急性再障

D．脾功能亢进

E．白血病