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【简答题】
什么是标准节流装置?在GB/T2624-93中规定的标准节流装置有哪些?应用最广泛的是哪种?
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反馈参考答案：
举一反三
【单选题】NASA's working definition for 'life' is: "Life is a self-sustaining system capable of ______________ evolution."
A.
rapid
B.
Darwinian
C.
slow
D.
radical
【单选题】你真可爱,你人真好。这里的sweet是kind(友善)的意思。这句话相当于Thank you. / It's so kind of you. 常用于女性之间。
A.
Here it is!
B.
Here we go...
C.
How interesting! / Interesting.
D.
How sweet! / You're so sweet. / That's too sweet.
【单选题】— If you need help, please turn to me. — _____. It's so kind of you. [ ]
A.
Not at all
B.
Sure, I will
C.
Nothing serious
D.
I know that for sure
【单选题】— It's so kind of you to give me a ride to the station. — ______. [ ]
A.
It doesn't matter
B.
Never mind
C.
Don't mention it
D.
Not at all. It's a pleasure
【单选题】It's so kind of you to help us. Without your help, we couldn't have finished the work___________. [ ]
A.
in a time
B.
at no time
C.
ahead of time
D.
behind time
【单选题】When did NASA．staff working on a successor to the shuttle? A．One year before the Columbia disaster.
B.
One year after the Columbia disaster.
C.
Immediately after the Columbia disaster.
D.
Years before the Columbia disaster.
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