血站工作人员每人每年应当接受岗位继续教育的要求是不少于（）学时。
参考答案：75
I don't think highly of this kind of flower - ________, I don't care for it.[ ]
A. in other words
B. all in all
C. after all
D. in the meanwhile
简述役用牛的外形特点。
