放射免疫分析常用的分离法是（）
A.活性炭吸附
B.抗原抗体沉淀
C.树脂交换，色层分析
D.凝胶滤过法
E.活性炭吸附及抗原抗体沉淀
参考答案：E
下列不属于甲午战后民族资本主义初步发展的原因的是
A．洋务企业和外资企业的刺激
B．清政府放宽对民间设厂的限制
C．清政府采取奖励工商业的做法
D．收回利权运动的促进
To comply with Standard Ⅳ (B) , Additional Compensation Arrangements, members should do all of the following EXCEPT:（）
A. immediately make a written report to their employer specifying any compensation benefits they receive.
B. immediately make a written report of any services they expect to receive.
C. reject any outside compensation immediately because it is not appropriate to accept outside compensation in a business setting.
