荣格人格理论的三个组成部分是( )。
A．自我
B．情结
C．原型
D．超我
参考答案：A,B,C
三相四线制是带电导体配电系统的型式之一，四线是指（）线。
A.U线
B.V线
C.W线
D.N线
Simon makes friends in his class because he is very selfish. [ ]
A. few
B. a few
C. little
D. a little
