题目内容
（请给出正确答案）
[单选题]
The librarian will not（）us touch that book.
A.let
B.allow
C.permit
D.agree
答案
A、let
如果结果不匹配，请 联系老师 获取答案
题目内容
（请给出正确答案）
答案
如果结果不匹配，请 联系老师 获取答案
题目内容
（请给出正确答案）
A.let
B.allow
C.permit
D.agree
答案
A、let
如果结果不匹配，请 联系老师 获取答案
更多“The librarian will not（）us tou…”相关的问题
A.grateful
B.helpful
C.skillful
D.hopeful
A.grateful
B. helpful
C. skillful
D. hopeful
A．ever since
B．much as
C．even though
D．if only
A library is more than just a place where books are stored. A library is a source of information. The information may come from books (fiction , nonfiction, or reference book), from periodicals (newspapers, magazines, and journals), from audio-visual materials (records, cassettes, microfilms, video tapes, etc.), or even from a computer terminal.
Students go to libraries to study and write research papers. The periodicals room of a university library is where foreign students often find newspapers and magazines from their countries . In the reference room, they can find catalogs(目录) from many universities in the U.S. and other countries. If you are buying a used car, the reference librarian can show you the Blue Book which lists the prices of new and used cars. People who need information in a hurry can telephone the reference librarian at many libraries.
There are as many different library services as there are types of people who use them. Children’s libraries provide materials for young readers. They sometimes have storytellers who read stories to groups of children , and a few have computers for the children to play with. Music lovers can listen to recordings of their favorite musicians in music libraries . Some libraries have painting and sculpture exhibits, and most libraries offer special services for blind people, such as books in Braille, ―talking‖ books , and Kurzweil Reading Machines.
Libraries provide entertainment as well as information. Novels and short stories from a library’s fiction collection are a good source of enjoyable reading practice. Public libraries often sponsor lectures on topics of interest to member of the community, and a few even offer concerts and films. No matter what your interests are, you will find that a library can be a great place to enjoy yourself while you learn.
1.What is another name for a library？()
A.A bookstore.
B.The periodicals room.
C.A reference librarian.
D.The information place
2.In the reference room of the library you can find().
A. the fiction collection
B. newspapers and magazines
C. university catalogs
D. materials for young readers
3.Which of the following is NOT an example of a library service？()
A. Used cars.
B. Art exhibits.
C. Children’s storytellers.
D. Kurzweil Reading Machines
4."A library can be a great place to enjoy yourself while you learn." This means you can()in a library.
A. talk and laugh as much as you want
B. find entertainment and information
C. play with computers
D. enjoy yourself by doing everything you can
5.What is the main idea of the whole text？ Choose the BEST answer.()
A. There are many kinds of libraries.
B. There are many books stored in a library.
C. Libraries provide entertainment.
D. Libraries offer many different services.
A.（jǐn ɡuǎn ）（ jìn xīn jié lì）
B.（jìn ɡuǎn ）（ jìn xīn jié lì）
C.（jǐn ɡuǎn ）（ jǐn xīn jié lì）
D.（jìn ɡuǎn ）（ jǐn xīn jié lì）
计算下列序列的N点DFT。 (1)x(n)=1 (2)x(n)=δ(n) (3)x(n)=δ(n一n0)， 0＜n0＜N (4)x(n)=Rm(n)， 0＜m＜N
(7)x(n)=ejω0nRN(n) (8)x(n)=sin(ω0n)RN(n) (9)x(n)=cos(ω0n)RN(n) (10)x(n)=nRN(n)
