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问题 多项选择题

终端变电所中可采取的限流措施有（）。

A.变压器分列运行

B.在变压器回路中装设电抗器（增加回路的电抗值限制短路电流）

C.采用小容量变压器（当UK%-定时，变压器容量越小，变压器阻抗越大，可限制短路电流）

D.采用低阻抗变压器（减少变压器的UK%，能增大变压器阻抗，限制短路电流）

答案

参考答案：A, B, C

补全对话，情景问答

根据语境，用恰当的语言完成对话。

(Jim and Linda are meeting on the way to school)

Jim: Hi, Linda. What's wrong with you?

Linda: Bad luck! I fell down my bike and broke my leg.

Jim:  1  .What did you do about it?

Linda: I couldn't move and did nothing.   2  if you had the accident?

Jim: If I were you, I wouldn't ride a bike. You are too young to ride.

Linda: But I am almost 13 years old.   3  .

Jim: I disagree. You shouldn't be allowed to do that. You are not serious enough.

Linda: Maybe you are right. By the way,   4 ?

Jim: I'm going to the dance club.

Linda: Wow! You have changed!  5  ?

Jim: No, but now I like dancing. I think it's pretty exciting. People sure change, you know.

Linda: Yeah. Maybe I won't ride my bike any more.

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单项选择题

高等学校的学生应当缴纳学费，家庭经济困难的学生，可以申请补助或者（）。

A.由企业代缴学费

B.由他人代缴学费

C.将来再缴学费

D.减免学费
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