醋酸纤维薄膜电泳时,位于β区带的血浆蛋白质有()
A.TRF
B.LDL
C.β-MG
D.C3
E.IgG
参考答案:A, B, C, D
As high school students, it’s very important to keep ourselves ______ of what’s happening home and abroad every day.
A.to inform
B.informing
C.informed
D.be informed
正在发生质壁分离的细胞,其吸水能力将()
A.逐渐变大
B.逐渐变小
C.不变
D.先变大后变小