连续使用逻辑组电路块的串联或并联最多可达（）
参考答案：8种
A．They want to learn skills.
B．They want to make a fortune.
C．They are stricken by poverty.
D．They want to do the same thing as adults do.
在系统总体设计阶段，总体设计中考虑使用的系统配置应该越高越好。
