不能进行骨髓检查的是（）
A.结核病
B.血小板减少性紫癜
C.放射病
D.重症血友病
E.粒细胞减少症
参考答案：D
______to school, he ______ the No.6 bus.[ ]
A. To get, take
B. To get, takes
C. Getting, take
D. Gets, takes
（）the morning from 0800 to 1200 Chief Officer is on duty.
A.On
B.In
C.At
D.During
