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My ship’s engine responds well to telegraph orders and takes about 80 seconds to reverse from full speed ahead to full speed astern. This sentence ______.
A.indicates the engine’s particulars
B.tells the engine’s function
C.shows the engine’s type
D.refers to the engine’s information
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更多 “ My ship’s engine responds well to telegraph orders and takes about 80 seconds to reverse from full speed ahead to full speed astern. This sentence ______.A.indicates the engine’s particularsB.tells the engine’s functionC.shows the engine’s typeD.refers to the engine’s information ” 相关考题
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听力原文：M: So, Jane, how long have you been an author?W: Well, Tom, I didn't start writing until I was in my thirtieth, and I'm over seventy now. So goodness, I must have been writing for about forty years.How long has the woman been an author?A．About 30 years.B．About 40 years.C．About 60 years.D．About 70 years.
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Basedontheshowspanning－treevlan200outputshownintheexhibit,whichtwostatementsabouttheSTPprocessforVLAN200aretrue?()
A.BPDUswillbesentouteverytwoseconds.B.Thetimespentinthelisteningstatewillbe30seconds.C.Thetimespentinthelearningstatewillbe15seconds.D.ThemaximumlengthoftimethattheBPDUinformationwillbesavedis30seconds.E.ThisswitchistherootbridgeforVLAN200.F.BPDUswillbesentoutevery10seconds.
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Youworkasanetworktechnicianat.Yourboss,Mrs.,isinterestedintheSpanningTreeProtocoltimers.WhatcanyoutellherregardingthedefaultSTPtimers?()
A.Thehellotimeis5seconds.B.Theforwarddelayis10seconds.C.Thehellotimeis2seconds.D.Theforwarddelayis15secondsE.Themax_agetimeris15seconds.F.Thehellotimeis10seconds.G.Themax_agetimeris20seconds.H.Theforwarddelayis20seconds.I.Themax_agetimeris30seconds.
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To agree with larger scale chart，latitudes taken from this chart should be increased ______ about 8 seconds．A.withB.inC.byD.to
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Teacher John wrote “well-will; big-beg; ship-sheep” on the blackboard. What is he teaching in this class?A.Vocabulary.
B.Grammar.
C.Discourse.
D.Pronunciation.
考题
A cool mass of air heads toward the United States from the upper regions of Canada and Alaska this week according to the National Weather Service.
According to the NWS a mass of cold air will drop from the Arctic regions to Canada and then the upper Midwest next week.
Temperatures across the Midwest will drop into the 60s and 70s-a sharp difference from the 80 degree and 90 degree temperatures from recent weeks. And the relatively cooler air may be felt as far East as New York and Washington
The cool breezes may be a welcome relief this time around but remember the last few times we got hit with Arctic air？
Temperatures in cities including Chicago Cleveland New York and Louisville fell into single-digit and negative territory for long stretches during the harsh winter months of early 2014. But we’re sure you remember
What’s the temperature when the report was written?A. About 60s and 70s
B. Between 60s and 90s
C. Below 60s
D. About 80s and 90s
考题
资料：We never thought we'd say this, but we'd welcome back some chilly weather.
A cool mass of air heads toward the United States from the upper regions of Canada and Alaska this week, according to the National Weather Service.
According to the NWS, a mass of cold air will drop from the Arctic regions to Canada and then the upper Midwest next week.
Temperatures across the Midwest will drop into the 60s and 70s—a sharp difference from the 80 degree and 90 degree temperatures from recent weeks. And the relatively cooler air may be felt as far East as New York and Washington.
The cool breezes may be a welcome relief this time around, but remember the last few times we got hit with Arctic air?
Temperatures in cities including Chicago, Cleveland, New York, and Louisville fell into single-digit and negative territory for long stretches during the harsh winter months of early 2014. But we're sure you remember.
What’s the temperature when the report was written?A.About 60s and 70s.
B.Between 60s and 90s.
C.Below 60s.
D.About 80s and 90s.
考题
用EDTA滴定金属离子M时，对金属指示剂的要求A．K'f (MIn)/ K'f (MY)≥100B．K'f (MIn)=K'f (MY)≥100C．K'f (MIn)/ K'f (MY)≈0.01D．只要MY与MIn颜色有明显差异
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考虑EDTA 的酸效应与金属离子的配位效应时，配合物的条件稳定常数的正确描述有A．lg K'f (MY) = lg Kf (MY)B．lg K'f (MY) = lg Kf (MY)－lg αY(H)－lg αM(L)C．酸度越高，其lg K'f (MY) 值越大D．酸度越高，其lg K'f (MY) 值越小
考题
10. 已知反应 （1) MnO（s) + 1/2O2（g) = MnO2（s) 的ΔrH1my （2) MnO2（s) + Mn（s) = 2 MnO（s) 的ΔrH2my 则 ΔfHym（MnO2、S） = （） A．ΔrH1my－ΔrH2my B. 2ΔrH1my+ΔrH2my C. 2ΔrH1my－ΔrH2my D. ΔrH1my+2ΔrH2my
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