（）亦称电气原理图。
A、工作原理图
B、工作方法图
C、连接方式图
D、电路图
参考答案：D
There are ________ bears on the earth because they have ____________ space on it．
A．fewer and fewer；less and less
B．more and more；fewer and fewer
C．less and less；fewer and fewer
D．more and more；less and less
信用
