题目内容

淋洗剂应具备的条件():

A. 所生成的稀土配合物应有足够的稳定性
B. 与各稀土元素生成的配合物的稳定常数有较大的差别
C. 价廉易得
D. 易于回收和循环使用

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影响稀土元素离子交换色层分离的因素:()

A. 淋洗剂溶液的pH值
B. 淋洗剂浓度
C. 淋洗剂流速
D. 树脂的性质

The presence of Negri bodies in host cells is characteristic of

A. Mumps
B. Infectious mononucleosis
Congenital rubella
D. Rabies

When infected by___________, one may occur hydrophobia.

A. HIV
B. HSV
C. mumps virus
D. rabies virus

Check if the animal has rabies, should be captured and observed in isolation for

A. 1 month
B. 11 weeks
C. 10d
D. 2 weeks

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