配电柜安装水平误差不大于（）。
A.1/100
B.2/100
C.3/100
D.5/100
参考答案：A
He is very popular among his students as he always tries to make them in his lectures.
A．interesting
B．interested
C．interest
D．to interest
立网宽（高）度不得小于（）m。
A、1.2
B、1.5
C、1.8
D、2.1
