低压电力网的布局应与农村发展规划相结合，供电半径一般不大于（）m。
A.1000
B.600
C.500
D.400
参考答案：C
— Where did you see the sponsor, Madame?
— It was in the supermarket _______I was doing some shopping with my husband. [ ]
A. that
B. where
C. which
D. when
用刻度尺测物体长度，如图所示，读数应为______cm．
