为了简化电缆在人孔中的留长的计算.一般人孔的每端电缆留长为()米,最多不超过()米为宜。
A.1-2、3
B.3、5
C.5、10
D.10、15
参考答案:A
—David has made great progress recently.
—_____, and _____. Keep up the good work, Tom.
A. So he has; so you have
B. So he has; so have you
C. So has he; so have you
八正散功效与作用