下述哪种不属于粘附分子()
A．整合素家族
B．选择素家族
C．粘蛋白样家族
D．IL
E．CD44
参考答案：D
免疫接种后首先产生的抗体是
A．IgM
B．Ig6
C．IgA
D．IgD
E．IgE
A blog (博客) is considered as an invention ______ can express your own ideas and feelings freely.
It's the room to communicate with other people online. [ ]
A. that
B. who
C. where
