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【简答题】
在如图所示的电路中,Vcc=12V, =50,其余各参数如图所示,试分析该电路静态工作点。(注意:要有分析过程,写在作业本上,结果拍照上传)
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【简答题】有房间宽度是 15 米,进深 12 米的教室。在屋顶安装 40 瓦日光灯的双灯灯具 30 套,地面的平均照度是多少?( 假设每根日光灯管的光通量是 2400 流明,照度率 0.5 ,折旧率 0.7 )
【单选题】听力原文：W: Have you decided where to go this winter, Harbin or Guangzhou? M: Well, I don't enjoy cold weather at all, but I'll go somewhere. What does the man mean?
A.
He will go to Harbin.
B.
He will stay at home.
C.
He will go on a trip.
【单选题】-I will go to Harbin for my summer vacation. What about you? -I haven't decided where_______.
A.
go
B.
went
C.
going
D.
to go
【单选题】---I will go to Harbin for my summer vacation. What about you? ---I haven’t decided where . A.go B.went C.going D.to go
A.
go
B.
went
C.
going
D.
to go
【简答题】从A-G 选项中选出能填入空白处的最佳选项，补全对话。（选项中有两项是多余的） A. And she could go on a tripat the weekends. B. What kind of city would you like? C. I am planning to go to Harbin. D. She must enjoy herselfthere. E. I went ...
【单选题】- Have you ever been to Harbin? - Yes, I ____________ there last winter.
A.
have been
B.
went
C.
go
D.
will go
【简答题】写作能力。 假如你是李明，你刚收到你的朋友王林的一封电子邮件，结合邮件内容和表格中提供 的信息给他回复一封电子邮件，表示你的欢迎并提出合理化建议。 Dear Li Ming, How are you? I write to tell you something exciting. You know we live in the south of China, so I have never see...
【简答题】单项选择。 1. She _______ Sanya last month A. will visit B. visited C. visits D. visit 2. Many years _______, he lived in Tianjin. A. from B. ago C. late D. pass 根据中文提示完成句子。 3.我喜欢在夜晚看月亮和星星。 I ...
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