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[主观题]

Figure 7.15 on page 204 shows the frequency distribution of various values for the product of H time

s u for Peoria, Illinois. If the average daily emission rate for carbon monoxide for this city is 2×107g/(h·mi2) and the standard to be met is 10 mg/m3, what fraction of the time must we implement intermittent control to meet this standard? Assume that the simple box model (Sec. 6.2) applies, that the size of the city is 5 mi by 5 mi, and that the background concentration is 2 mg/m3.
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更多“Figure 7.15 on page 204 shows the frequency distribution of various values for the product of H time”相关的问题

第1题

The () on Page 22 shows a political map of Afric.

A.structure

B.shape

C.figure

D.outline

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第2题

听力原文:W: What's the problem?M: (23)I can't figure out how to put the page numbers on. I

听力原文:W: What's the problem?

M: (23)I can't figure out how to put the page numbers on. I've done everything and they aren't showing up.

W: Let's see. Did you press Shift, F-8?

M: Yes, I did that. Then I hit P for page and N for number.

W: That's good. Did you type in the page number where you want the numbering to start?

M: Yes, I typed the number 1.

W: Right. Did you press Enter?

M: Yes.

W: How about F-7 return to the document?

M: I did that. But no number's showed up on the screen.

W: Unhuh, Did you print it?

M: No, (24)I don't want to print it until I see the numbers.

W: Well, that's the problem then. The numbers don't show up on the screen. But they will be on the printed copy. Let's try that.

M: Okay. You do it this time, and I'll watch.

W: Well, I'll do it if you want, (25)but it would ire better if you let me talk you through it.

M: I don't know.

W: Really. Once you've done it with someone coaching you, it's easier to do it on your own. Don't worry. This is my job.

M: Oh, all right. Shift, F-8.

W: Now hit P for page and N for number.

M: And the page number I want to start with which is number 1.

W: Great, just press Enter, then F-7 to return to the document, and you're all set to print. Then you'll see those numbers.

(20)

A.The man is learning how to use a computer.

B.The woman is showing the man how to put page numbers on a document.

C.The man is printing a document.

D.The man is using his computer to do mathematical functions.

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第3题

听力原文:W: What's the problem?M: I can't figure out how to put the page numbers on. I've

听力原文:W: What's the problem?

M: I can't figure out how to put the page numbers on. I've done everything and they aren't showing up.

W: Let's see. Did you press Shift, F-8?

M: Yes, I did that. Then I hit P for page and N for number.

W: That's good. Did you type in the page number where you want the numbering to start?

M: Yes. I typed the number 1.

W: Right. Did you press Enter?

M: Yes.

W: How about F-7 return to the document?

M: I did that. But no number's showed up on the screen.

W: Unhuh, Did you print it?

M: No, I don't want to print it until I see the numbers.

W: Well, that's the problem then. The numbers don't show up on the screen. But they will be on the printed copy. Let's try that.

M: Okay. You do it this time, and I'll watch.

W: Well, I'll do it if you want, but it would be better if you let me talk you through it.

M: I don't know.

W: Really. Once you've done it with someone coaching you, it's easier to do it on your own. Don't worry. This is my job.

M: Oh, all right. Shift, F-8.

W: Now hit P for page and N for number.

M: And the page number I want to start with which is number 1.

W: Great, just press Enter, then F-7 to return to the document, and you're all set to print. Then you'll see those numbers.

(20)

A.The man is learning how to use a computer.

B.The woman is showing the man how to put page numbers on a document.

C.The man is printing a document.

D.The man is using his computer to do mathematical functions.

点击查看答案

第4题

正常体液的pH值为:()

A.7.05~7.15

B.7.15~7.25

C.7.45~7.55

D.7.35~7.45

E.7.15~7.45

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第5题

在世界煤炭总储量中,硬煤的储量比褐煤的储量多()万亿吨。

A.7.15

B.3.58

C.10.73

D.6.78

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第6题

血气分析酸碱度的参考值为()

A.7.35~7.45

B.7.25~7.40

C.7.20~7.35

D.7.15~7

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第7题

正常人血浆的PH值为()

A.7.35~7.45

B.6.35~6.45

C.7.05~7.15

D.7.65~7.75

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第8题

010 mol.dm-3Na2SO4溶液的pH为7.15。 ()此题为判断题(对,错)。
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第9题

在世界煤炭总储量中,硬煤的储量比褐煤的储量多()万亿吨。

A.7.15

B.3.58

C.10.73

D.6.78

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第10题

如图7.15所示交通图,试作出第一个流向图。

如图7.15所示交通图,试作出第一个流向图。

请帮忙给出正确答案和分析,谢谢!

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