多项选择题
某电厂单元机组,发电机采用双绕组变压器组接入220kV母线,厂用分支从主变低压侧引接至高压工作厂变,高压起动/备用变从220kV母线引接,高压厂用电为6kV中性点不接地系统,若主变为YNd11接法,则高压工作厂变和高压起备变的绕组连接方法可以为下列哪几项?( )
A.高压工作厂变Dd0,高压起备变YNd11
B.高压工作厂变Dy1,高压起备变YNy0d11(d11系稳定绕组)
C.高压工作厂变Yd11,高压起备变YNd11
D.高压工作厂变Yd1,高压起备变Dnd0
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听力原文:(Woman—Anna Man—Jim)W: Jim, what have you heard about the new restaurant? Have you eaten there yet?M: I've heard some good things about it but I haven't been there yet. Why? Anna, are you interested in Spanish food?W: Yes I am. I tried Spanish food when I was in Europe last summer and I loved it.M: Well, this place is supposed to be very gooD.I have been meaning to go therE.W: What have you heard?M: Well, Sue said that the food was exactly like the food she ate in Spain. She said they have different kinds of Spanish dishes and that everything she has tried has been gooD.W: I like Spanish tapas best. Tapas are small dishes. You can order several small dishes and have a taste of each. It's a good way to try different dishes.M: That sounds like a good ideA.W: That way, the price is not too high. There are meats, vegetables, noodles, rice, and fish. You can have a little bit of everything and enjoy the different flavors.M: What are we waiting for? Let's go tonight.W: Well, since you asked, I'll be glad to go. We'll go Dutch, though. I want to pay for my own meal.M: That's fine with mE.What time do you want to go?W: Why don't we meet right here at six o'clock?M: Great! I'll see you then. Tapas, here we comE.(23)A.ChinesE.B.Mexican.C.Italian.D.Spanish.
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C.Italian.
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听力原文:W: John, I thought you werE.going to leave early today to take your son to the show.M: I'm stilt planning to. But I can't leave until I finish typing all the letters.W: Can you leave that until tomorrow?M: No. The boss wants them to be finished by tomorrow morning.W: How many have you got left?M: About fivE.W: Why don't you just go aheaD.John? I'll do the letters for you.M: Thank you very much, Janet. You're so kinD.Where arc the speakers?A.In a classroom.B.In a theater.C.In an officE.
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