能介导ADCC作用的Ig有()
A.IgG
B.IgM
C.血清型单体IgA
D.IgD
E.寄生虫抗原特异性IgE
参考答案:A, C, E
Some spacecrafts have gone _____ the solar system.But man hasn't _____. [ ]
A.with, already
B.beyond, yet
C.without, just
D.out, ever
259+89≈[ ]
A.330
B.300
C.350