具有抑制补体活化作用的是()。
A.CD
B.CAM
C.CR1
D.CKR
E.FcR
参考答案:C
去除甲醛色素()
A.1%盐酸乙醇
B.Verocay液
C.Lugol碘溶液
D.0.25%高锰酸钾
E.稀氨水
In recent decades, China is becoming one of the most _____countries in the world.
A.plentiful
B.powerful
C.friendly
D.wealthy