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
