变性蛋白质与天然蛋白质的区别在于()
A.溶解度降低
B.黏度增加
C.结晶型破坏
D.生物学活性丧失
E.更易被蛋白酶降解
参考答案:A, B, C, D, E
《人民币鉴别仪通用技术条件》(GB_16999-2010)中定义的A级点验钞机要求使用大于等于()种鉴别技术。
A.12
B.9
C.5
D.4
The physician prescribes amoxicillin suspension 100 mg every 8 hours for a child who weighs 33 lb (15 kg). The drug is supplied in a bottle labeled 250 rag/teaspoon (1mL=50 mg). How many milliliters should the nurse administer
A.2 mL.
B.2.5 mL.
C.5 mL.
D.7.5 mL.