【多选题】【消耗次数：1】
建筑施工现场临时用电必须采用（ ）
①
三级配电系统
②
TN-S接零保护系统
③
二级漏电保护系统
④
TN-C系统
⑤
四级配电系统
参考答案：
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【单选题】
What（）next will be discussed at the next meeting.
①
to do
②
is doing
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will do
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shall we do
【单选题】
_______ his sister, Jack is quiet and does not easily make friends with others.
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Dislike
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Alike
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【单选题】
How do you do? Glad to meet you._________
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Fine. How are you?
②
How do you do? Glad to meet you, too.
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How are you? Thank you!
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Nice. How are you?
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Don’t take any action until you are fully _____ with the situation there.
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consented
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content
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obvious
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acquainted
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When a fire____ at the National Exhibition in London, at least ten priceless paintings were completely destroyed.
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broke off
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broke out
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What a bad memory I’ve got! I even forgot ______ the book with me.
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took
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taking
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take
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As the bus came round the comer, it ran _______ a big tree by the roadside.
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over
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on
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into
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up
【判断题】
判断线上的内容是否正确：If I have any comments to make, I’ll write them in the ___margin___ of the book I’m reading
①
正确
②
错误
【判断题】
判断线上的内容是否正确：Parents should actively urge their children to__keep track of____the opportunity to join sports teams.
①
正确
②
错误