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设f(x)为区间[a，b]上的连续函数，则曲线y=f(x)与直线x=a，x=b，y=0所围成的封闭图形的面积为()．

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What did Arcadian Clock Co. include with the product warranty？

A warranty registration form
B. A catalogue of new products
C. A list of service centers
D. The instruction for shipment

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What does Mr. Tomas Rodriguez say about the Lexington Repair Center？

A. It provided the service at a discounted rate
B. It is an authorized service center.
C. It performed unnecessary work.
D. It finished the job quickly.

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What should an employee who has a comment on the memo do？

A. Meet with Karen Livingston
B. Call Frank Palmer
C. Send Karen Livingston an e-mail
D. Send Frank Palmer an e-mail

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MEMO
To: All employees
From: Frank Palmer, CEO
Date: October 3
Subject: Budgeting for marketing
We will need annual revenues of more than $3,000,000 to support our marketing plan. Currently, an average of 5.0% of our total sales is used for marketing expenses. We need to increase that amount from this year. It is our belief that strong marketing will make us more competitive.
Our rival, Poliris Corp., has increased their revenues by investing more into marketing. However, we will not invest more in marketing activities if our revenues decrease. According to our analysts, we can anticipate at least a 3% rise next quarter.
Please send me any questions, comments or suggestions you might have about this matter by e-mail at palmer@nova.com.
To: Frank Palmer ＜palmer@nova.com＞
From: Karen Livingston ＜karen@nova.com＞, Human Relations Director
Date: October 4
Subject: Budgeting for marketing
Dear Frank Palmer,
I have a question about the memo you sent out. How often will revenues be tracked？ I believe that we need to keep track of how much revenue increase we will have as a result of this new marketing budget plan. We also need to consider our fixed costs such as salaried staff. I believe this plan will require more staff, so we should be considering those extra costs.
I'd like to go over these points, as well as other issues in relation to the staff, with you in person. Please let me know if you are available for a meeting on Friday. I'm meeting with a client in the morning, so the afternoon would be best.
Regards,
Karen Livingston
What is the purpose of the memo？

A. To set up a meeting to discuss the budget
B. To tell employees about money for marketing
C. To ask the employees for comments about the budget
D. To alert the employees about hiring more staff

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