---Your mother didn’t go to work this morning, did she?

---______Though she was not feeling well.

A．Yes, she did.

B．No, she didn’t.

C．No, she did.

D．Yes, she didn’t.

架空线路中，钢绞线（GJ）常用作（）

A.架空地线

B.接地引下线

C.接地极

D.杆塔的拉线