题目内容

The passage is mainly about_______.

A. U.currency
B. exchange fees
C. American airports
D. currency exchange

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( 二)(2012.06 Task2)Start your day off right with our continental breakfast free. Not only do we offer a generous variety of traditional continental foods, but also a couple of hot items each day. Too busy to sit down for breakfast? During the week, you can choose to take away a breakfast bag.We provide high speed internet access in all guest rooms and common areas. Are you sick of sitting at the desk all day? We provide lap (放在膝盖上的)desks in every room to improve your work environment. Didn’t bring your laptop computer with you? Please use our computer and printer located in our business center. We can also provide fax and copy service at the front desk.Our 400 sq. Feet of meeting space can hold up to 30 people. For an extra fee, we can provide electronic digital equipment. Conveniently located just next to the business center, our meeting space works well for all your business needs.We are located directly off Highway 131 at Exit 78. We are just 2 miles north of the M6-Suth Beltline. There are multiple restaurants within walking distance. Our address:755 54th Street S.W.Wyoming, MI 49509(616)261-5500, Fax(616)261-9120Grro-Hampton@Hilton.com6.Which of the following is TRUE about the breakfast in the hotel?

A. Chinese foods are also available.
B. All the items provided are hot food.
C. Free continental breakfast is provided.
D. Breakfast can be taken away at weekends.

One of the advantages of the hotel is that ________.

A. it is located in a business cneter
B. there are many restaurants nearb
C. its meeting space is the largest in the city
D. a laptop computer is available in each room

设A是正交矩阵,则下列结论错误的是( ).

A. |A|2必为1
B. |A|必为1
C. A-1=AT
D. A的行(列)向量组是正交单位向量组

正交的两个向量的夹角是90度. ( )

A. 对
B. 错

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