【单选题】根据《GB/T 12325-2008《电能质量供电电压偏差》》,下列哪项规定是正确的。( )
A.
35KV及以上供电电压正、负偏差绝对值之和不超过标称电压的10%
B.
20KV及以下三相供电电压偏差为标称电压的7%
D.
对供电点短路容量较小、供电距离较长以及对供电电压偏差有特殊要求的用户,不做限制。
【单选题】We couldn't sleep well last night because there was a _______ baby in the next room.
【单选题】听力原文: Hi Len, this is Kyle. Could you please let Alan know that I'm not coming in to work today? I was supposed to get together with him at 10 o'clock this morning to talk about the investors' group m...
B.
To let people know he will be late
C.
To inform. people he will not be at work today
D.
To reschedule a meeting
【简答题】用 so 或者 such 填空 1. He was ( ) excited that he couldn't get sleep. 2. Tom is ( ) a lazy boy that he never does anything. 3. He is ( ) a good student that we all like him. 4. This teacher is ( ...
【简答题】用所给单词的适当形式填空。 1. When we get together, we usually write poems to make _____ (funny). 2. Sometimes we write poems to _____ (description)seasons. 3. I wish I could be a _____ (poem). 4. The water was so...
【单选题】听力原文:M: I think Professor's lecture is so boring, and I couldn't help falling asleep. W: Well, it seems that his lecture suits my taste. Q: What can we learn from the conversation? (13)
A.
The man feels so tired that he wants to sleep.
B.
They both think the lecture is very boring.
C.
They have different opinions about the lecture.
D.
The Professor's lecture is too difficult to understand.