选择性蛋白尿的主要成分是
A．视黄醇结合蛋白
B．γ-球蛋白
C．黏蛋白
D．β2-微球蛋白
E．清蛋白
参考答案：E
把56平均分成8份，每份是多少？
A．The man is Susan’s advisor.
B．It is not possible to get AIDS from sharing a glass of water.
C．There is a high risk of getting infected with HIV at work.
D．Susan’s patient was angry when she wore protective clothing to bring himlunch.
