Mark: That's great! Anything interesting?

Tracy: Yes, working at an____park.

Mark: Wow, that sounds____ !

Tracy: So, have you found anything?

Mark: Nothing yet, but I have a ____ of leads. One is working as an intern for a record company-mostly answering phones. Or I can get a landscaping job again.

Tracy:____ an intern sounds more interesting than landscaping. You'd have better hours, and it's probably not as much work.

Mark: Yeah, but a landscaper earns more than an intern. And you get a great tan!

如图所示，当开关S断开时，电阻R₁、R₂是____（填“串联”或“并联”），甲表是____，乙表是____（选填“电流表”或“电压表”）。