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From: Lettore Books Online [order-info@lettorebooks.com] To: Andrea Polokov [apolokov@amail.com] Subject: Order Confirmation Dear Andrea Polokov: This is to inform. you that we are in receipt of your order placed on December 2. Your order confirmation number is YB-145970. Should you have any questions regarding your order, you will be asked to refer to this number. Two of the titles you requested are currently in stock these materials should ship within 1-3 days. However, the video title is on backorder. We expect that it should be available and shipped to you within the next 3 weeks. When your order is shipped, you will receive an e-mail detailing the date and method of shipment as well as the estimated delivery date. For your convenience, you can track the status of your order online by visiting your account link at http://www.lettorebooks.com/acctinfo/login. There you can track shipment status, review estimated delivery dates, cancel unshipped items, and contact customer service 24 hours a day. You can also call our customer service number at 1-800-555-2346. Service representatives are available Monday through Friday from 8:00 a.m. until 5:00 p.m. Thank you once again for shopping with us. Sincerely, Lettore Books Online What does this e-mail confirm?
A.
An order is being processed.
B.
A delivery method has been changed.
C.
An item has been discontinued.
D.
A shipment has been sent.
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举一反三
【判断题】银行汇票可以用于转账,即使填写了“现金”字样的银行汇票,也不能用于支取现金。
A.
正确
B.
错误
【单选题】地西泮不具有: A
A.
抗精神分裂症
B.
抗惊厥作用
C.
抗癫痫作用
D.
中枢性肌松作用
【简答题】(本小题9分)已知向量 =(cos ,sin ), =(cos ,sin ),| |= . (1)求cos( - )的值; (2)若0< < ,- < <0,且sin =- ,求sin 的值.
【简答题】银行汇票可以用于转账,也可以用于支取现金。 ( )
【判断题】轴心受压构件中,采用强度很高的高强钢筋是很经济的
A.
正确
B.
错误
【简答题】银行汇票可以用于转账,也可用于支取现金。 ( )
【判断题】银行汇票可以用于转账,填明“现金”字样的银行汇票可以转账也可以用于支取现金。
A.
正确
B.
错误
【简答题】已知向量 =(cos ,sin ), =(cos ,sin ), 。 (1)求cos( - )的值; (2)若0< < ,- < <0,且sin =- ,求sin 的值.
【简答题】已知 = ,那么sin 的值为 ,cos2 的值为
【简答题】已知向量 =(cos ,sin ), =(cos ,sin ),| |= . (Ⅰ)求cos( - )的值; ( Ⅱ)若0< < ,- < <0, 且sin =- ,求sin 的值.
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