M: What are you going to do after your return from New York
W: I’m going to stay in the city.
M: What will you do all day
W: I’m going to work with my father at the workshop. In the evening, I’ll read books. On weekends, I’ll go to the park with my family．
M: Have you ever worked
W: No, but I can learn. What are you going to do this summer
M: I’m going to camp. I’ve gone to camp for four summers.
W: I’ve never gone to camp. What do you do there
M: We do many things. In the morning, we go swimming and boating. In the afternoon, we play volleyball or tennis. We sit around a campfire at night. We sing or tell stories.
W: That sounds wonderful.
M: It is wonderful. What’s Wales going to do this summer
W: I think he’s going to the mountains with his parents.
M: Well, so long, Alice．Have fun.
W: You too, Leslie. Give my regards to Wales. I’ll see you in October.
What is the possible relationship between them （）
A. Friends.
B. Colleagues.
C. Boss and staff.
D. Husband and wife.
）并联在电路中。欲使这两个电阻消耗的电功率相等，可行的办法是用一个阻值为______________
的电阻与____________串联。（选填“
”或“
”）